pr_stats.c

/*
 * pr_stats.c: Functions used by sar to display statistics
 * (C) 1999-2017 by Sebastien GODARD (sysstat <at> orange.fr)
 *
 ***************************************************************************
 * This program is free software; you can redistribute it and/or modify it *
 * under the terms of the GNU General Public License as published  by  the *
 * Free Software Foundation; either version 2 of the License, or (at  your *
 * option) any later version.                                              *
 *                                                                         *
 * This program is distributed in the hope that it  will  be  useful,  but *
 * WITHOUT ANY WARRANTY; without the implied warranty  of  MERCHANTABILITY *
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
 * for more details.                                                       *
 *                                                                         *
 * You should have received a copy of the GNU General Public License along *
 * with this program; if not, write to the Free Software Foundation, Inc., *
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA              *
 ***************************************************************************
 */

#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>

#include "sa.h"
#include "ioconf.h"
#include "pr_stats.h"

#ifdef USE_NLS
#include <locale.h>
#include <libintl.h>
#define _(string) gettext(string)
#else
#define _(string) (string)
#endif

extern unsigned int flags;
extern unsigned int dm_major;
extern int  dis;
extern char timestamp[][TIMESTAMP_LEN];
extern unsigned long avg_count;


/*
 ***************************************************************************
 * Display current activity header line.
 *
 * IN:
 * @timestamp	Timestamp for previous stat sample.
 * @a		Activity structure.
 * @pos		Index in @.hdr_line string, 0 being the first one (header
 * 		are delimited by the '|' character).
 * @iwidth	First column width (generally this is the item name). A
 * 		negative value means that the corresponding field shall be
 * 		displayed at the end of the line, with no indication of width.
 * @vwidth	Column width for stats values.
 ***************************************************************************
 */
void print_hdr_line(char *timestamp, struct activity *a, int pos, int iwidth, int vwidth)
{
	char hline[HEADER_LINE_LEN] = "";
	char *hl, *tk, *it = NULL;
	int i = -1, j;
	int p = pos;

	strncpy(hline, a->hdr_line, HEADER_LINE_LEN - 1);
	hline[HEADER_LINE_LEN - 1] = '\0';
	for (hl = strtok(hline, "|"); hl && (pos > 0); hl = strtok(NULL, "|"), pos--);
	if (!hl)
		/* Bad @pos arg given to function */
		return;

	printf("\n%-11s", timestamp);

	if (strchr(hl, '&')) {
		j = strcspn(hl, "&");
		if ((a->opt_flags & 0xff00) & (1 << (8 + p))) {
			/* Display whole header line */
			*(hl + j) = ';';
		}
		else {
			/* Display only the first part of the header line */
			*(hl + j) = '\0';
		}
	}
	/* Display each field */
	for (tk = strtok(hl, ";"); tk; tk = strtok(NULL, ";"), i--) {
		if (iwidth > 0) {
			printf(" %*s", iwidth, tk);
			iwidth = 0;
			continue;
		}
		if ((iwidth < 0) && (iwidth == i)) {
			it = tk;
			iwidth = 0;
		}
		else {
			printf(" %*s", vwidth, tk);
		}
	}
	if (it) {
		printf(" %s", it);
	}
	printf("\n");
}

/*
 ***************************************************************************
 * Display CPU statistics.
 * NB: The stats are only calculated over the part of the time interval when
 * the CPU was online. As a consequence, the sum (%user + %nice + ... + %idle)
 * will always be 100% on the time interval even if the CPU has been offline
 * most of the time.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second (independent of the
 *		number of processors). Unused here.
 ***************************************************************************
 */
__print_funct_t print_cpu_stats(struct activity *a, int prev, int curr,
				unsigned long long itv)
{
	int i;
	unsigned long long tot_jiffies_c, tot_jiffies_p;
	unsigned long long deltot_jiffies;
	struct stats_cpu *scc, *scp;

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST + DISPLAY_CPU_ALL(a->opt_flags), 7, 9);
	}

	/*
	 * @nr[curr] cannot normally be greater than @nr_ini
	 * (since @nr_ini counts up all CPU, even those offline).
	 * If this happens, it may be because the machine has been
	 * restarted with more CPU and no LINUX_RESTART has been
	 * inserted in file.
	 * No problem here with @nr_allocated. Having been able to
	 * read @nr[curr] structures shows that buffers are large enough.
	 */
	if (a->nr[curr] > a->nr_ini) {
		a->nr_ini = a->nr[curr];
	}

	for (i = 0; (i < a->nr_ini) && (i < a->bitmap->b_size + 1); i++) {

		/*
		 * The size of a->buf[...] CPU structure may be different from the default
		 * sizeof(struct stats_cpu) value if data have been read from a file!
		 * That's why we don't use a syntax like:
		 * scc = (struct stats_cpu *) a->buf[...] + i;
		 */
		scc = (struct stats_cpu *) ((char *) a->buf[curr] + i * a->msize);
		scp = (struct stats_cpu *) ((char *) a->buf[prev] + i * a->msize);

		/*
		 * Note: @nr[curr] is in [1, NR_CPUS + 1].
		 * Bitmap size is provided for (NR_CPUS + 1) CPUs.
		 * Anyway, NR_CPUS may vary between the version of sysstat
		 * used by sadc to create a file, and the version of sysstat
		 * used by sar to read it...
		 */

		/* Should current CPU (including CPU "all") be displayed? */
		if (!(a->bitmap->b_array[i >> 3] & (1 << (i & 0x07))))
			/* No */
			continue;

		/*
		 * Yes: Compute the total number of jiffies spent by current processor.
		 * NB: Don't add cpu_guest/cpu_guest_nice because cpu_user/cpu_nice
		 * already include them.
		 */
		tot_jiffies_c = scc->cpu_user + scc->cpu_nice +
				scc->cpu_sys + scc->cpu_idle +
				scc->cpu_iowait + scc->cpu_hardirq +
				scc->cpu_steal + scc->cpu_softirq;
		tot_jiffies_p = scp->cpu_user + scp->cpu_nice +
				scp->cpu_sys + scp->cpu_idle +
				scp->cpu_iowait + scp->cpu_hardirq +
				scp->cpu_steal + scp->cpu_softirq;

		/* Total number of jiffies spent on the interval */
		deltot_jiffies = get_interval(tot_jiffies_p, tot_jiffies_c);

		/*
		 * If the CPU is offline then it is omited from /proc/stat:
		 * All the fields couldn't have been read and the sum of them is zero.
		 */
		if (tot_jiffies_c == 0) {
			/*
			 * CPU is currently offline.
			 * Set current struct fields (which have been set to zero)
			 * to values from previous iteration. Hence their values won't
			 * jump from zero when the CPU comes back online.
			 * Note that this workaround is no longer enough with recent kernels,
			 * as I have noticed that when a CPU comes back online, some fields
			 * restart from their previous value (e.g. user, nice, system)
			 * whereas others restart from zero (idle, iowait)!
			 */
			*scc = *scp;

			/* An offline CPU is not displayed */
			continue;
		}
		if (tot_jiffies_p == 0)
			/*
			 * CPU has just come back online.
			 * Unfortunately, no reference values are available
			 * from a previous iteration, probably because it was
			 * already offline when the first sample has been taken.
			 * So don't display that CPU to prevent "jump-from-zero"
			 * output syndrome.
			 */
			continue;

		printf("%-11s", timestamp[curr]);

		if (!i) {
			/* This is CPU "all" */
			cprintf_in(IS_STR, " %s", "    all", 0);
		}
		else {
			cprintf_in(IS_INT, " %7d", "", i - 1);

			/* Recalculate interval for current proc */
			deltot_jiffies = get_per_cpu_interval(scc, scp);

			if (!deltot_jiffies) {
				/*
				 * If the CPU is tickless then there is no change in CPU values
				 * but the sum of values is not zero.
				 * %user, %nice, %system, %iowait, %steal, ..., %idle
				 */
				cprintf_pc(DISPLAY_UNIT(flags), 5, 9, 2,
					   0.0, 0.0, 0.0, 0.0, 0.0);

				if (DISPLAY_CPU_DEF(a->opt_flags)) {
					cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2, 100.0);
					printf("\n");
				}
				/*
				 * Four additional fields to display:
				 * %irq, %soft, %guest, %gnice.
				 */
				else if (DISPLAY_CPU_ALL(a->opt_flags)) {
					cprintf_pc(DISPLAY_UNIT(flags), 4, 9, 2,
						   0.0, 0.0, 0.0, 100.0);
					printf("\n");
				}
				continue;
			}
		}

		if (DISPLAY_CPU_DEF(a->opt_flags)) {
			cprintf_pc(DISPLAY_UNIT(flags), 6, 9, 2,
				   ll_sp_value(scp->cpu_user, scc->cpu_user, deltot_jiffies),
				   ll_sp_value(scp->cpu_nice, scc->cpu_nice, deltot_jiffies),
				   ll_sp_value(scp->cpu_sys + scp->cpu_hardirq + scp->cpu_softirq,
					       scc->cpu_sys + scc->cpu_hardirq + scc->cpu_softirq,
					       deltot_jiffies),
				   ll_sp_value(scp->cpu_iowait, scc->cpu_iowait, deltot_jiffies),
				   ll_sp_value(scp->cpu_steal, scc->cpu_steal, deltot_jiffies),
				   scc->cpu_idle < scp->cpu_idle ?
				   0.0 :
				   ll_sp_value(scp->cpu_idle, scc->cpu_idle, deltot_jiffies));
			printf("\n");
		}
		else if (DISPLAY_CPU_ALL(a->opt_flags)) {
			cprintf_pc(DISPLAY_UNIT(flags), 10, 9, 2,
				   (scc->cpu_user - scc->cpu_guest) < (scp->cpu_user - scp->cpu_guest) ?
				   0.0 :
				   ll_sp_value(scp->cpu_user - scp->cpu_guest,
					       scc->cpu_user - scc->cpu_guest, deltot_jiffies),
					       (scc->cpu_nice - scc->cpu_guest_nice) < (scp->cpu_nice - scp->cpu_guest_nice) ?
				   0.0 :
				   ll_sp_value(scp->cpu_nice - scp->cpu_guest_nice,
					       scc->cpu_nice - scc->cpu_guest_nice, deltot_jiffies),
				   ll_sp_value(scp->cpu_sys, scc->cpu_sys, deltot_jiffies),
				   ll_sp_value(scp->cpu_iowait, scc->cpu_iowait, deltot_jiffies),
				   ll_sp_value(scp->cpu_steal, scc->cpu_steal, deltot_jiffies),
				   ll_sp_value(scp->cpu_hardirq, scc->cpu_hardirq, deltot_jiffies),
				   ll_sp_value(scp->cpu_softirq, scc->cpu_softirq, deltot_jiffies),
				   ll_sp_value(scp->cpu_guest, scc->cpu_guest, deltot_jiffies),
				   ll_sp_value(scp->cpu_guest_nice, scc->cpu_guest_nice, deltot_jiffies),
				   scc->cpu_idle < scp->cpu_idle ?
				   0.0 :
				   ll_sp_value(scp->cpu_idle, scc->cpu_idle, deltot_jiffies));
			printf("\n");
		}
	}
}

/*
 ***************************************************************************
 * Display tasks creation and context switches statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_pcsw_stats(struct activity *a, int prev, int curr,
				 unsigned long long itv)
{
	struct stats_pcsw
		*spc = (struct stats_pcsw *) a->buf[curr],
		*spp = (struct stats_pcsw *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 2, 9, 2,
		  S_VALUE(spp->processes,      spc->processes,      itv),
		  S_VALUE(spp->context_switch, spc->context_switch, itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display interrupts statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_irq_stats(struct activity *a, int prev, int curr,
				unsigned long long itv)
{
	int i;
	struct stats_irq *sic, *sip;

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	for (i = 0; (i < a->nr[curr]) && (i < a->bitmap->b_size + 1); i++) {

		/*
		 * If @nr[curr] > @nr[prev] then we consider that previous
		 * interrupt value was 0.
		 */
		sic = (struct stats_irq *) ((char *) a->buf[curr] + i * a->msize);
		sip = (struct stats_irq *) ((char *) a->buf[prev] + i * a->msize);

		/*
		 * Note: @nr[curr] gives the number of interrupts read (1 .. NR_IRQS + 1).
		 * Bitmap size is provided for (NR_IRQS + 1) interrupts.
		 * Anyway, NR_IRQS may vary between the version of sysstat
		 * used by sadc to create a file, and the version of sysstat
		 * used by sar to read it...
		 */

		/* Should current interrupt (including int "sum") be displayed? */
		if (a->bitmap->b_array[i >> 3] & (1 << (i & 0x07))) {

			/* Yes: Display it */
			printf("%-11s", timestamp[curr]);
			if (!i) {
				/* This is interrupt "sum" */
				cprintf_in(IS_STR, " %s", "      sum", 0);
			}
			else {
				cprintf_in(IS_INT, " %9d", "", i -1);
			}

			cprintf_f(NO_UNIT, 1, 9, 2, S_VALUE(sip->irq_nr, sic->irq_nr, itv));
			printf("\n");
		}
	}
}

/*
 ***************************************************************************
 * Display swapping statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_swap_stats(struct activity *a, int prev, int curr,
				 unsigned long long itv)
{
	struct stats_swap
		*ssc = (struct stats_swap *) a->buf[curr],
		*ssp = (struct stats_swap *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 2, 9, 2,
		  S_VALUE(ssp->pswpin,  ssc->pswpin,  itv),
		  S_VALUE(ssp->pswpout, ssc->pswpout, itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display paging statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_paging_stats(struct activity *a, int prev, int curr,
				   unsigned long long itv)
{
	struct stats_paging
		*spc = (struct stats_paging *) a->buf[curr],
		*spp = (struct stats_paging *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 8, 9, 2,
		  S_VALUE(spp->pgpgin,        spc->pgpgin,        itv),
		  S_VALUE(spp->pgpgout,       spc->pgpgout,       itv),
		  S_VALUE(spp->pgfault,       spc->pgfault,       itv),
		  S_VALUE(spp->pgmajfault,    spc->pgmajfault,    itv),
		  S_VALUE(spp->pgfree,        spc->pgfree,        itv),
		  S_VALUE(spp->pgscan_kswapd, spc->pgscan_kswapd, itv),
		  S_VALUE(spp->pgscan_direct, spc->pgscan_direct, itv),
		  S_VALUE(spp->pgsteal,       spc->pgsteal,       itv));
	cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
		   (spc->pgscan_kswapd + spc->pgscan_direct -
		   spp->pgscan_kswapd - spp->pgscan_direct) ?
		   SP_VALUE(spp->pgsteal, spc->pgsteal,
			    spc->pgscan_kswapd + spc->pgscan_direct -
			    spp->pgscan_kswapd - spp->pgscan_direct)
		   : 0.0);
	printf("\n");
}

/*
 ***************************************************************************
 * Display I/O and transfer rate statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_io_stats(struct activity *a, int prev, int curr,
			       unsigned long long itv)
{
	struct stats_io
		*sic = (struct stats_io *) a->buf[curr],
		*sip = (struct stats_io *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	/*
	 * If we get negative values, this is probably because
	 * one or more devices/filesystems have been unmounted.
	 * We display 0.0 in this case though we should rather tell
	 * the user that the value cannot be calculated here.
	 */
	cprintf_f(NO_UNIT, 5, 9, 2,
		  sic->dk_drive < sip->dk_drive ? 0.0 :
		  S_VALUE(sip->dk_drive, sic->dk_drive, itv),
		  sic->dk_drive_rio < sip->dk_drive_rio ? 0.0 :
		  S_VALUE(sip->dk_drive_rio, sic->dk_drive_rio, itv),
		  sic->dk_drive_wio < sip->dk_drive_wio ? 0.0 :
		  S_VALUE(sip->dk_drive_wio, sic->dk_drive_wio, itv),
		  sic->dk_drive_rblk < sip->dk_drive_rblk ? 0.0 :
		  S_VALUE(sip->dk_drive_rblk, sic->dk_drive_rblk, itv),
		  sic->dk_drive_wblk < sip->dk_drive_wblk ? 0.0 :
		  S_VALUE(sip->dk_drive_wblk, sic->dk_drive_wblk, itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display memory and swap statistics. This function is used to
 * display instantaneous and average statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @dispavg	TRUE if displaying average statistics.
 ***************************************************************************
 */
void stub_print_memory_stats(struct activity *a, int prev, int curr, int dispavg)
{
	struct stats_memory
		*smc = (struct stats_memory *) a->buf[curr];
	static unsigned long long
		avg_frmkb       = 0,
		avg_bufkb       = 0,
		avg_camkb       = 0,
		avg_comkb       = 0,
		avg_activekb    = 0,
		avg_inactkb     = 0,
		avg_dirtykb     = 0,
		avg_anonpgkb    = 0,
		avg_slabkb      = 0,
		avg_kstackkb    = 0,
		avg_pgtblkb     = 0,
		avg_vmusedkb    = 0,
		avg_availablekb = 0;
	static unsigned long long
		avg_frskb = 0,
		avg_tlskb = 0,
		avg_caskb = 0;
	int unit = NO_UNIT;

	if (DISPLAY_UNIT(flags)) {
		/* Default values unit is kB */
		unit = UNIT_KILOBYTE;
	}

	if (DISPLAY_MEMORY(a->opt_flags)) {
		if (dis) {
			print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
		}

		if (!dispavg) {
			/* Display instantaneous values */
			printf("%-11s", timestamp[curr]);
			cprintf_u64(unit, 3, 9,
				    (unsigned long long) smc->frmkb,
				    (unsigned long long) smc->availablekb,
				    (unsigned long long) (smc->tlmkb - smc->frmkb));
			cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
				   smc->tlmkb ?
				   SP_VALUE(smc->frmkb, smc->tlmkb, smc->tlmkb)
				   : 0.0);
			cprintf_u64(unit, 3, 9,
				    (unsigned long long) smc->bufkb,
				    (unsigned long long) smc->camkb,
				    (unsigned long long) smc->comkb);
			cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
				   (smc->tlmkb + smc->tlskb) ?
				   SP_VALUE(0, smc->comkb, smc->tlmkb + smc->tlskb)
				   : 0.0);
			cprintf_u64(unit, 3, 9,
				    (unsigned long long) smc->activekb,
				    (unsigned long long) smc->inactkb,
				    (unsigned long long) smc->dirtykb);

			if (DISPLAY_MEM_ALL(a->opt_flags)) {
				/* Display extended memory statistics */
				cprintf_u64(unit, 5, 9,
					    (unsigned long long) smc->anonpgkb,
					    (unsigned long long) smc->slabkb,
					    (unsigned long long) smc->kstackkb,
					    (unsigned long long) smc->pgtblkb,
					    (unsigned long long) smc->vmusedkb);
			}

			printf("\n");

			/*
			 * Will be used to compute the average.
			 * We assume that the total amount of memory installed can not vary
			 * during the interval given on the command line.
			 */
			avg_frmkb       += smc->frmkb;
			avg_bufkb       += smc->bufkb;
			avg_camkb       += smc->camkb;
			avg_comkb       += smc->comkb;
			avg_activekb    += smc->activekb;
			avg_inactkb     += smc->inactkb;
			avg_dirtykb     += smc->dirtykb;
			avg_anonpgkb    += smc->anonpgkb;
			avg_slabkb      += smc->slabkb;
			avg_kstackkb    += smc->kstackkb;
			avg_pgtblkb     += smc->pgtblkb;
			avg_vmusedkb    += smc->vmusedkb;
			avg_availablekb += smc->availablekb;
		}
		else {
			/* Display average values */
			printf("%-11s", timestamp[curr]);
			cprintf_f(unit, 3, 9, 0,
				  (double) avg_frmkb / avg_count,
				  (double) avg_availablekb / avg_count,
				  (double) smc->tlmkb - ((double) avg_frmkb / avg_count));
			cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
				   smc->tlmkb ?
				   SP_VALUE((double) (avg_frmkb / avg_count), smc->tlmkb, smc->tlmkb)
				   : 0.0);
			cprintf_f(unit, 3, 9, 0,
				  (double) avg_bufkb / avg_count,
				  (double) avg_camkb / avg_count,
				  (double) avg_comkb / avg_count);
			cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
				   (smc->tlmkb + smc->tlskb) ?
				   SP_VALUE(0.0, (double) (avg_comkb / avg_count), smc->tlmkb + smc->tlskb)
				   : 0.0);
			cprintf_f(unit, 3, 9, 0,
				  (double) avg_activekb / avg_count,
				  (double) avg_inactkb / avg_count,
				  (double) avg_dirtykb / avg_count);

			if (DISPLAY_MEM_ALL(a->opt_flags)) {
				cprintf_f(unit, 5, 9, 0,
					  (double) avg_anonpgkb / avg_count,
					  (double) avg_slabkb / avg_count,
					  (double) avg_kstackkb / avg_count,
					  (double) avg_pgtblkb / avg_count,
					  (double) avg_vmusedkb / avg_count);
			}

			printf("\n");

			/* Reset average counters */
			avg_frmkb = avg_bufkb = avg_camkb = avg_comkb = 0;
			avg_activekb = avg_inactkb = avg_dirtykb = 0;
			avg_anonpgkb = avg_slabkb = avg_kstackkb = 0;
			avg_pgtblkb = avg_vmusedkb = avg_availablekb = 0;
		}
	}

	if (DISPLAY_SWAP(a->opt_flags)) {
		if (dis) {
			print_hdr_line(timestamp[!curr], a, SECOND, 0, 9);
		}

		if (!dispavg) {
			/* Display instantaneous values */
			printf("%-11s", timestamp[curr]);
			cprintf_u64(unit, 2, 9,
				    (unsigned long long) smc->frskb,
				    (unsigned long long) (smc->tlskb - smc->frskb));
			cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
				   smc->tlskb ?
				   SP_VALUE(smc->frskb, smc->tlskb, smc->tlskb)
				   : 0.0);
			cprintf_u64(unit, 1, 9,
				    (unsigned long long) smc->caskb);
			cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
				   (smc->tlskb - smc->frskb) ?
				   SP_VALUE(0, smc->caskb, smc->tlskb - smc->frskb)
				   : 0.0);

			printf("\n");

			/*
			 * Will be used to compute the average.
			 * We assume that the total amount of swap space may vary.
			 */
			avg_frskb += smc->frskb;
			avg_tlskb += smc->tlskb;
			avg_caskb += smc->caskb;
		}
		else {
			/* Display average values */
			printf("%-11s", timestamp[curr]);
			cprintf_f(unit, 2, 9, 0,
				  (double) avg_frskb / avg_count,
				  ((double) avg_tlskb / avg_count) -
				  ((double) avg_frskb / avg_count));
			cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
				   avg_tlskb ?
				   SP_VALUE((double) avg_frskb / avg_count,
					    (double) avg_tlskb / avg_count,
					    (double) avg_tlskb / avg_count)
				   : 0.0);
			cprintf_f(unit, 1, 9, 0,
				  (double) avg_caskb / avg_count);
			cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
				   (avg_tlskb != avg_frskb) ?
				   SP_VALUE(0.0, (double) avg_caskb / avg_count,
					    ((double) avg_tlskb / avg_count) -
					    ((double) avg_frskb / avg_count))
				   : 0.0);
			printf("\n");

			/* Reset average counters */
			avg_frskb = avg_tlskb = avg_caskb = 0;
		}
	}
}

/*
 ***************************************************************************
 * Display memory and swap statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_memory_stats(struct activity *a, int prev, int curr,
				   unsigned long long itv)
{
	stub_print_memory_stats(a, prev, curr, FALSE);
}

/*
 ***************************************************************************
 * Display average memory statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_avg_memory_stats(struct activity *a, int prev, int curr,
				       unsigned long long itv)
{
	stub_print_memory_stats(a, prev, curr, TRUE);
}

/*
 ***************************************************************************
 * Display kernel tables statistics. This function is used to display
 * instantaneous and average statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @curr	Index in array for current sample statistics.
 * @dispavg	True if displaying average statistics.
 ***************************************************************************
 */
void stub_print_ktables_stats(struct activity *a, int curr, int dispavg)
{
	struct stats_ktables
		*skc = (struct stats_ktables *) a->buf[curr];
	static unsigned long long
		avg_dentry_stat = 0,
		avg_file_used   = 0,
		avg_inode_used  = 0,
		avg_pty_nr      = 0;


	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	if (!dispavg) {
		/* Display instantaneous values */
		printf("%-11s", timestamp[curr]);
		cprintf_u64(NO_UNIT, 4, 9,
			    (unsigned long long) skc->dentry_stat,
			    (unsigned long long) skc->file_used,
			    (unsigned long long) skc->inode_used,
			    (unsigned long long) skc->pty_nr);
		printf("\n");

		/*
		 * Will be used to compute the average.
		 * Note: Overflow unlikely to happen but not impossible...
		 */
		avg_dentry_stat += skc->dentry_stat;
		avg_file_used   += skc->file_used;
		avg_inode_used  += skc->inode_used;
		avg_pty_nr      += skc->pty_nr;
	}
	else {
		/* Display average values */
		printf("%-11s", timestamp[curr]);
		cprintf_f(NO_UNIT, 4, 9, 0,
			  (double) avg_dentry_stat / avg_count,
			  (double) avg_file_used   / avg_count,
			  (double) avg_inode_used  / avg_count,
			  (double) avg_pty_nr      / avg_count);
		printf("\n");

		/* Reset average counters */
		avg_dentry_stat = avg_file_used = avg_inode_used = avg_pty_nr = 0;
	}
}

/*
 ***************************************************************************
 * Display kernel tables statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_ktables_stats(struct activity *a, int prev, int curr,
				    unsigned long long itv)
{
	stub_print_ktables_stats(a, curr, FALSE);
}

/*
 ***************************************************************************
 * Display average kernel tables statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_avg_ktables_stats(struct activity *a, int prev, int curr,
					unsigned long long itv)
{
	stub_print_ktables_stats(a, curr, TRUE);
}

/*
 ***************************************************************************
 * Display queue and load statistics. This function is used to display
 * instantaneous and average statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @curr	Index in array for current sample statistics.
 * @dispavg	TRUE if displaying average statistics.
 ***************************************************************************
 */
void stub_print_queue_stats(struct activity *a, int curr, int dispavg)
{
	struct stats_queue
		*sqc = (struct stats_queue *) a->buf[curr];
	static unsigned long long
		avg_nr_running    = 0,
		avg_nr_threads    = 0,
		avg_load_avg_1    = 0,
		avg_load_avg_5    = 0,
		avg_load_avg_15   = 0,
		avg_procs_blocked = 0;

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	if (!dispavg) {
		/* Display instantaneous values */
		printf("%-11s", timestamp[curr]);
		cprintf_u64(NO_UNIT, 2, 9,
			    (unsigned long long) sqc->nr_running,
			    (unsigned long long) sqc->nr_threads);
		cprintf_f(NO_UNIT, 3, 9, 2,
			  (double) sqc->load_avg_1  / 100,
			  (double) sqc->load_avg_5  / 100,
			  (double) sqc->load_avg_15 / 100);
		cprintf_u64(NO_UNIT, 1, 9,
			    (unsigned long long) sqc->procs_blocked);
		printf("\n");

		/* Will be used to compute the average */
		avg_nr_running    += sqc->nr_running;
		avg_nr_threads    += sqc->nr_threads;
		avg_load_avg_1    += sqc->load_avg_1;
		avg_load_avg_5    += sqc->load_avg_5;
		avg_load_avg_15   += sqc->load_avg_15;
		avg_procs_blocked += sqc->procs_blocked;
	}
	else {
		/* Display average values */
		printf("%-11s", timestamp[curr]);
		cprintf_f(NO_UNIT, 2, 9, 0,
			  (double) avg_nr_running / avg_count,
			  (double) avg_nr_threads / avg_count);
		cprintf_f(NO_UNIT, 3, 9, 2,
			  (double) avg_load_avg_1  / (avg_count * 100),
			  (double) avg_load_avg_5  / (avg_count * 100),
			  (double) avg_load_avg_15 / (avg_count * 100));
		cprintf_f(NO_UNIT, 1, 9, 0,
			  (double) avg_procs_blocked / avg_count);
		printf("\n");

		/* Reset average counters */
		avg_nr_running = avg_nr_threads = 0;
		avg_load_avg_1 = avg_load_avg_5 = avg_load_avg_15 = 0;
		avg_procs_blocked = 0;
	}
}

/*
 ***************************************************************************
 * Display queue and load statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_queue_stats(struct activity *a, int prev, int curr,
				  unsigned long long itv)
{
	stub_print_queue_stats(a, curr, FALSE);
}

/*
 ***************************************************************************
 * Display average queue and load statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_avg_queue_stats(struct activity *a, int prev, int curr,
				      unsigned long long itv)
{
	stub_print_queue_stats(a, curr, TRUE);
}

/*
 ***************************************************************************
 * Display serial lines statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_serial_stats(struct activity *a, int prev, int curr,
				   unsigned long long itv)
{
	int i, j, j0, found;
	struct stats_serial *ssc, *ssp;

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	for (i = 0; i < a->nr[curr]; i++) {

		found = FALSE;

		if (a->nr[prev] > 0) {
			ssc = (struct stats_serial *) ((char *) a->buf[curr] + i * a->msize);

			/* Look for corresponding serial line in previous iteration */
			j = i;

			if (j >= a->nr[prev]) {
				j = a->nr[prev] - 1;
			}

			j0 = j;

			do {
				ssp = (struct stats_serial *) ((char *) a->buf[prev] + j * a->msize);
				if ((ssc->line == ssp->line) || WANT_SINCE_BOOT(flags)) {
					found = TRUE;
					break;
				}
				if (++j >= a->nr[prev]) {
					j = 0;
				}
			}
			while (j != j0);
		}

		if (!found)
			continue;

		printf("%-11s", timestamp[curr]);
		cprintf_in(IS_INT, "       %3d", "", ssc->line);

		cprintf_f(NO_UNIT, 6, 9, 2,
			  S_VALUE(ssp->rx,      ssc->rx,      itv),
			  S_VALUE(ssp->tx,      ssc->tx,      itv),
			  S_VALUE(ssp->frame,   ssc->frame,   itv),
			  S_VALUE(ssp->parity,  ssc->parity,  itv),
			  S_VALUE(ssp->brk,     ssc->brk,     itv),
			  S_VALUE(ssp->overrun, ssc->overrun, itv));
		printf("\n");
	}
}

/*
 ***************************************************************************
 * Display disks statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_disk_stats(struct activity *a, int prev, int curr,
				 unsigned long long itv)
{
	int i, j;
	struct stats_disk *sdc,	*sdp, sdpzero;
	struct ext_disk_stats xds;
	char *dev_name, *persist_dev_name;
	int unit = NO_UNIT;

	memset(&sdpzero, 0, STATS_DISK_SIZE);

	if (DISPLAY_UNIT(flags)) {
		/* Default values unit is kB */
		unit = UNIT_KILOBYTE;
	}

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, -1, 9);
	}

	for (i = 0; i < a->nr[curr]; i++) {

		sdc = (struct stats_disk *) ((char *) a->buf[curr] + i * a->msize);

		j = check_disk_reg(a, curr, prev, i);
		if (j < 0) {
			/* This is a newly registered interface. Previous stats are zero */
			sdp = &sdpzero;
		}
		else {
			sdp = (struct stats_disk *) ((char *) a->buf[prev] + j * a->msize);
		}

		/* Compute service time, etc. */
		compute_ext_disk_stats(sdc, sdp, itv, &xds);

		dev_name = NULL;
		persist_dev_name = NULL;

		if (DISPLAY_PERSIST_NAME_S(flags)) {
			persist_dev_name = get_persistent_name_from_pretty(get_devname(sdc->major, sdc->minor, TRUE));
		}

		if (persist_dev_name) {
			dev_name = persist_dev_name;
		}
		else {
			if ((USE_PRETTY_OPTION(flags)) && (sdc->major == dm_major)) {
				dev_name = transform_devmapname(sdc->major, sdc->minor);
			}

			if (!dev_name) {
				dev_name = get_devname(sdc->major, sdc->minor,
						       USE_PRETTY_OPTION(flags));
			}
		}

		printf("%-11s", timestamp[curr]);

		cprintf_f(NO_UNIT, 1, 9, 2,
			  S_VALUE(sdp->nr_ios, sdc->nr_ios,  itv));
		cprintf_f(unit, 2, 9, 2,
			  S_VALUE(sdp->rd_sect, sdc->rd_sect, itv) / 2,
			  S_VALUE(sdp->wr_sect, sdc->wr_sect, itv) / 2);
		/* See iostat for explanations */
		cprintf_f(unit, 1, 9, 2,
			  xds.arqsz / 2);
		cprintf_f(NO_UNIT, 3, 9, 2,
			  S_VALUE(sdp->rq_ticks, sdc->rq_ticks, itv) / 1000.0,
			  xds.await,
			  xds.svctm);
		cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
			   xds.util / 10.0);
		cprintf_in(IS_STR, " %s\n", dev_name, 0);
	}
}

/*
 ***************************************************************************
 * Display network interfaces statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_dev_stats(struct activity *a, int prev, int curr,
				    unsigned long long itv)
{
	int i, j;
	struct stats_net_dev *sndc, *sndp, sndzero;
	double rxkb, txkb, ifutil;
	int unit = NO_UNIT;

	memset(&sndzero, 0, STATS_NET_DEV_SIZE);

	if (DISPLAY_UNIT(flags)) {
		/* Default values unit is bytes */
		unit = UNIT_BYTE;
	}

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, -1, 9);
	}

	for (i = 0; i < a->nr[curr]; i++) {

		sndc = (struct stats_net_dev *) ((char *) a->buf[curr] + i * a->msize);

		j = check_net_dev_reg(a, curr, prev, i);
		if (j < 0) {
			/* This is a newly registered interface. Previous stats are zero */
			sndp = &sndzero;
		}
		else {
			sndp = (struct stats_net_dev *) ((char *) a->buf[prev] + j * a->msize);
		}

		printf("%-11s", timestamp[curr]);

		rxkb = S_VALUE(sndp->rx_bytes, sndc->rx_bytes, itv);
		txkb = S_VALUE(sndp->tx_bytes, sndc->tx_bytes, itv);

		cprintf_f(NO_UNIT, 2, 9, 2,
			  S_VALUE(sndp->rx_packets, sndc->rx_packets, itv),
			  S_VALUE(sndp->tx_packets, sndc->tx_packets, itv));
		cprintf_f(unit, 2, 9, 2,
			  unit < 0 ? rxkb / 1024 : rxkb,
			  unit < 0 ? txkb / 1024 : txkb);
		cprintf_f(NO_UNIT, 3, 9, 2,
			  S_VALUE(sndp->rx_compressed, sndc->rx_compressed, itv),
			  S_VALUE(sndp->tx_compressed, sndc->tx_compressed, itv),
			  S_VALUE(sndp->multicast,     sndc->multicast,     itv));
		ifutil = compute_ifutil(sndc, rxkb, txkb);
		cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2, ifutil);
		cprintf_in(IS_STR, " %s\n", sndc->interface, 0);
	}
}

/*
 ***************************************************************************
 * Display network interface errors statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_edev_stats(struct activity *a, int prev, int curr,
				     unsigned long long itv)
{
	int i, j;
	struct stats_net_edev *snedc, *snedp, snedzero;

	memset(&snedzero, 0, STATS_NET_EDEV_SIZE);

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, -1, 9);
	}

	for (i = 0; i < a->nr[curr]; i++) {

		snedc = (struct stats_net_edev *) ((char *) a->buf[curr] + i * a->msize);

		j = check_net_edev_reg(a, curr, prev, i);
		if (j < 0) {
			/* This is a newly registered interface. Previous stats are zero */
			snedp = &snedzero;
		}
		else {
			snedp = (struct stats_net_edev *) ((char *) a->buf[prev] + j * a->msize);
		}

		printf("%-11s", timestamp[curr]);

		cprintf_f(NO_UNIT, 9, 9, 2,
			  S_VALUE(snedp->rx_errors,         snedc->rx_errors,         itv),
			  S_VALUE(snedp->tx_errors,         snedc->tx_errors,         itv),
			  S_VALUE(snedp->collisions,        snedc->collisions,        itv),
			  S_VALUE(snedp->rx_dropped,        snedc->rx_dropped,        itv),
			  S_VALUE(snedp->tx_dropped,        snedc->tx_dropped,        itv),
			  S_VALUE(snedp->tx_carrier_errors, snedc->tx_carrier_errors, itv),
			  S_VALUE(snedp->rx_frame_errors,   snedc->rx_frame_errors,   itv),
			  S_VALUE(snedp->rx_fifo_errors,    snedc->rx_fifo_errors,    itv),
			  S_VALUE(snedp->tx_fifo_errors,    snedc->tx_fifo_errors,    itv));
		cprintf_in(IS_STR, " %s\n", snedc->interface, 0);
	}
}

/*
 ***************************************************************************
 * Display NFS client statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_nfs_stats(struct activity *a, int prev, int curr,
				    unsigned long long itv)
{
	struct stats_net_nfs
		*snnc = (struct stats_net_nfs *) a->buf[curr],
		*snnp = (struct stats_net_nfs *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 6, 9, 2,
		  S_VALUE(snnp->nfs_rpccnt,     snnc->nfs_rpccnt,     itv),
		  S_VALUE(snnp->nfs_rpcretrans, snnc->nfs_rpcretrans, itv),
		  S_VALUE(snnp->nfs_readcnt,    snnc->nfs_readcnt,    itv),
		  S_VALUE(snnp->nfs_writecnt,   snnc->nfs_writecnt,   itv),
		  S_VALUE(snnp->nfs_accesscnt,  snnc->nfs_accesscnt,  itv),
		  S_VALUE(snnp->nfs_getattcnt,  snnc->nfs_getattcnt,  itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display NFS server statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_nfsd_stats(struct activity *a, int prev, int curr,
				     unsigned long long itv)
{
	struct stats_net_nfsd
		*snndc = (struct stats_net_nfsd *) a->buf[curr],
		*snndp = (struct stats_net_nfsd *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 11, 9, 2,
		  S_VALUE(snndp->nfsd_rpccnt,    snndc->nfsd_rpccnt,    itv),
		  S_VALUE(snndp->nfsd_rpcbad,    snndc->nfsd_rpcbad,    itv),
		  S_VALUE(snndp->nfsd_netcnt,    snndc->nfsd_netcnt,    itv),
		  S_VALUE(snndp->nfsd_netudpcnt, snndc->nfsd_netudpcnt, itv),
		  S_VALUE(snndp->nfsd_nettcpcnt, snndc->nfsd_nettcpcnt, itv),
		  S_VALUE(snndp->nfsd_rchits,    snndc->nfsd_rchits,    itv),
		  S_VALUE(snndp->nfsd_rcmisses,  snndc->nfsd_rcmisses,  itv),
		  S_VALUE(snndp->nfsd_readcnt,   snndc->nfsd_readcnt,   itv),
		  S_VALUE(snndp->nfsd_writecnt,  snndc->nfsd_writecnt,  itv),
		  S_VALUE(snndp->nfsd_accesscnt, snndc->nfsd_accesscnt, itv),
		  S_VALUE(snndp->nfsd_getattcnt, snndc->nfsd_getattcnt, itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display network sockets statistics. This function is used to display
 * instantaneous and average statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @curr	Index in array for current sample statistics.
 * @dispavg	TRUE if displaying average statistics.
 ***************************************************************************
 */
void stub_print_net_sock_stats(struct activity *a, int curr, int dispavg)
{
	struct stats_net_sock
		*snsc = (struct stats_net_sock *) a->buf[curr];
	static unsigned long long
		avg_sock_inuse = 0,
		avg_tcp_inuse  = 0,
		avg_udp_inuse  = 0,
		avg_raw_inuse  = 0,
		avg_frag_inuse = 0,
		avg_tcp_tw     = 0;

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	if (!dispavg) {
		/* Display instantaneous values */
		printf("%-11s", timestamp[curr]);
		cprintf_u64(NO_UNIT, 6, 9,
			    (unsigned long long) snsc->sock_inuse,
			    (unsigned long long) snsc->tcp_inuse,
			    (unsigned long long) snsc->udp_inuse,
			    (unsigned long long) snsc->raw_inuse,
			    (unsigned long long) snsc->frag_inuse,
			    (unsigned long long) snsc->tcp_tw);
		printf("\n");

		/* Will be used to compute the average */
		avg_sock_inuse += snsc->sock_inuse;
		avg_tcp_inuse  += snsc->tcp_inuse;
		avg_udp_inuse  += snsc->udp_inuse;
		avg_raw_inuse  += snsc->raw_inuse;
		avg_frag_inuse += snsc->frag_inuse;
		avg_tcp_tw     += snsc->tcp_tw;
	}
	else {
		/* Display average values */
		printf("%-11s", timestamp[curr]);
		cprintf_f(NO_UNIT, 6, 9, 0,
			  (double) avg_sock_inuse / avg_count,
			  (double) avg_tcp_inuse  / avg_count,
			  (double) avg_udp_inuse  / avg_count,
			  (double) avg_raw_inuse  / avg_count,
			  (double) avg_frag_inuse / avg_count,
			  (double) avg_tcp_tw     / avg_count);
		printf("\n");

		/* Reset average counters */
		avg_sock_inuse = avg_tcp_inuse = avg_udp_inuse = 0;
		avg_raw_inuse = avg_frag_inuse = avg_tcp_tw = 0;
	}
}

/*
 ***************************************************************************
 * Display network sockets statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_sock_stats(struct activity *a, int prev, int curr,
				     unsigned long long itv)
{
	stub_print_net_sock_stats(a, curr, FALSE);
}

/*
 ***************************************************************************
 * Display average network sockets statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_avg_net_sock_stats(struct activity *a, int prev, int curr,
					 unsigned long long itv)
{
	stub_print_net_sock_stats(a, curr, TRUE);
}

/*
 ***************************************************************************
 * Display IP network traffic statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_ip_stats(struct activity *a, int prev, int curr,
				   unsigned long long itv)
{
	struct stats_net_ip
		*snic = (struct stats_net_ip *) a->buf[curr],
		*snip = (struct stats_net_ip *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 8, 9, 2,
		  S_VALUE(snip->InReceives,    snic->InReceives,    itv),
		  S_VALUE(snip->ForwDatagrams, snic->ForwDatagrams, itv),
		  S_VALUE(snip->InDelivers,    snic->InDelivers,    itv),
		  S_VALUE(snip->OutRequests,   snic->OutRequests,   itv),
		  S_VALUE(snip->ReasmReqds,    snic->ReasmReqds,    itv),
		  S_VALUE(snip->ReasmOKs,      snic->ReasmOKs,      itv),
		  S_VALUE(snip->FragOKs,       snic->FragOKs,       itv),
		  S_VALUE(snip->FragCreates,   snic->FragCreates,   itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display IP network errors statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_eip_stats(struct activity *a, int prev, int curr,
				    unsigned long long itv)
{
	struct stats_net_eip
		*sneic = (struct stats_net_eip *) a->buf[curr],
		*sneip = (struct stats_net_eip *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 8, 9, 2,
		  S_VALUE(sneip->InHdrErrors,     sneic->InHdrErrors,     itv),
		  S_VALUE(sneip->InAddrErrors,    sneic->InAddrErrors,    itv),
		  S_VALUE(sneip->InUnknownProtos, sneic->InUnknownProtos, itv),
		  S_VALUE(sneip->InDiscards,      sneic->InDiscards,      itv),
		  S_VALUE(sneip->OutDiscards,     sneic->OutDiscards,     itv),
		  S_VALUE(sneip->OutNoRoutes,     sneic->OutNoRoutes,     itv),
		  S_VALUE(sneip->ReasmFails,      sneic->ReasmFails,      itv),
		  S_VALUE(sneip->FragFails,       sneic->FragFails,       itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display ICMP network traffic statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_icmp_stats(struct activity *a, int prev, int curr,
				     unsigned long long itv)
{
	struct stats_net_icmp
		*snic = (struct stats_net_icmp *) a->buf[curr],
		*snip = (struct stats_net_icmp *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 14, 9, 2,
		  S_VALUE(snip->InMsgs,           snic->InMsgs,           itv),
		  S_VALUE(snip->OutMsgs,          snic->OutMsgs,          itv),
		  S_VALUE(snip->InEchos,          snic->InEchos,          itv),
		  S_VALUE(snip->InEchoReps,       snic->InEchoReps,       itv),
		  S_VALUE(snip->OutEchos,         snic->OutEchos,         itv),
		  S_VALUE(snip->OutEchoReps,      snic->OutEchoReps,      itv),
		  S_VALUE(snip->InTimestamps,     snic->InTimestamps,     itv),
		  S_VALUE(snip->InTimestampReps,  snic->InTimestampReps,  itv),
		  S_VALUE(snip->OutTimestamps,    snic->OutTimestamps,    itv),
		  S_VALUE(snip->OutTimestampReps, snic->OutTimestampReps, itv),
		  S_VALUE(snip->InAddrMasks,      snic->InAddrMasks,      itv),
		  S_VALUE(snip->InAddrMaskReps,   snic->InAddrMaskReps,   itv),
		  S_VALUE(snip->OutAddrMasks,     snic->OutAddrMasks,     itv),
		  S_VALUE(snip->OutAddrMaskReps,  snic->OutAddrMaskReps,  itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display ICMP network errors statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_eicmp_stats(struct activity *a, int prev, int curr,
				      unsigned long long itv)
{
	struct stats_net_eicmp
		*sneic = (struct stats_net_eicmp *) a->buf[curr],
		*sneip = (struct stats_net_eicmp *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 12, 9, 2,
		  S_VALUE(sneip->InErrors,        sneic->InErrors,        itv),
		  S_VALUE(sneip->OutErrors,       sneic->OutErrors,       itv),
		  S_VALUE(sneip->InDestUnreachs,  sneic->InDestUnreachs,  itv),
		  S_VALUE(sneip->OutDestUnreachs, sneic->OutDestUnreachs, itv),
		  S_VALUE(sneip->InTimeExcds,     sneic->InTimeExcds,     itv),
		  S_VALUE(sneip->OutTimeExcds,    sneic->OutTimeExcds,    itv),
		  S_VALUE(sneip->InParmProbs,     sneic->InParmProbs,     itv),
		  S_VALUE(sneip->OutParmProbs,    sneic->OutParmProbs,    itv),
		  S_VALUE(sneip->InSrcQuenchs,    sneic->InSrcQuenchs,    itv),
		  S_VALUE(sneip->OutSrcQuenchs,   sneic->OutSrcQuenchs,   itv),
		  S_VALUE(sneip->InRedirects,     sneic->InRedirects,     itv),
		  S_VALUE(sneip->OutRedirects,    sneic->OutRedirects,    itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display TCP network traffic statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_tcp_stats(struct activity *a, int prev, int curr,
				    unsigned long long itv)
{
	struct stats_net_tcp
		*sntc = (struct stats_net_tcp *) a->buf[curr],
		*sntp = (struct stats_net_tcp *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 4, 9, 2,
		  S_VALUE(sntp->ActiveOpens,  sntc->ActiveOpens,  itv),
		  S_VALUE(sntp->PassiveOpens, sntc->PassiveOpens, itv),
		  S_VALUE(sntp->InSegs,       sntc->InSegs,       itv),
		  S_VALUE(sntp->OutSegs,      sntc->OutSegs,      itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display TCP network errors statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_etcp_stats(struct activity *a, int prev, int curr,
				     unsigned long long itv)
{
	struct stats_net_etcp
		*snetc = (struct stats_net_etcp *) a->buf[curr],
		*snetp = (struct stats_net_etcp *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 5, 9, 2,
		  S_VALUE(snetp->AttemptFails, snetc->AttemptFails, itv),
		  S_VALUE(snetp->EstabResets,  snetc->EstabResets,  itv),
		  S_VALUE(snetp->RetransSegs,  snetc->RetransSegs,  itv),
		  S_VALUE(snetp->InErrs,       snetc->InErrs,       itv),
		  S_VALUE(snetp->OutRsts,      snetc->OutRsts,      itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display UDP network traffic statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_udp_stats(struct activity *a, int prev, int curr,
				    unsigned long long itv)
{
	struct stats_net_udp
		*snuc = (struct stats_net_udp *) a->buf[curr],
		*snup = (struct stats_net_udp *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 4, 9, 2,
		  S_VALUE(snup->InDatagrams,  snuc->InDatagrams,  itv),
		  S_VALUE(snup->OutDatagrams, snuc->OutDatagrams, itv),
		  S_VALUE(snup->NoPorts,      snuc->NoPorts,      itv),
		  S_VALUE(snup->InErrors,     snuc->InErrors,     itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display IPv6 sockets statistics. This function is used to display
 * instantaneous and average statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @curr	Index in array for current sample statistics.
 * @dispavg	TRUE if displaying average statistics.
 ***************************************************************************
 */
void stub_print_net_sock6_stats(struct activity *a, int curr, int dispavg)
{
	struct stats_net_sock6
		*snsc = (struct stats_net_sock6 *) a->buf[curr];
	static unsigned long long
		avg_tcp6_inuse  = 0,
		avg_udp6_inuse  = 0,
		avg_raw6_inuse  = 0,
		avg_frag6_inuse = 0;

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	if (!dispavg) {
		/* Display instantaneous values */
		printf("%-11s", timestamp[curr]);
		cprintf_u64(NO_UNIT, 4, 9,
			    (unsigned long long) snsc->tcp6_inuse,
			    (unsigned long long) snsc->udp6_inuse,
			    (unsigned long long) snsc->raw6_inuse,
			    (unsigned long long) snsc->frag6_inuse);
		printf("\n");

		/* Will be used to compute the average */
		avg_tcp6_inuse  += snsc->tcp6_inuse;
		avg_udp6_inuse  += snsc->udp6_inuse;
		avg_raw6_inuse  += snsc->raw6_inuse;
		avg_frag6_inuse += snsc->frag6_inuse;
	}
	else {
		/* Display average values */
		printf("%-11s", timestamp[curr]);
		cprintf_f(NO_UNIT, 4, 9, 0,
			  (double) avg_tcp6_inuse  / avg_count,
			  (double) avg_udp6_inuse  / avg_count,
			  (double) avg_raw6_inuse  / avg_count,
			  (double) avg_frag6_inuse / avg_count);
		printf("\n");

		/* Reset average counters */
		avg_tcp6_inuse = avg_udp6_inuse = avg_raw6_inuse = avg_frag6_inuse = 0;
	}
}

/*
 ***************************************************************************
 * Display IPv6 sockets statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_sock6_stats(struct activity *a, int prev, int curr,
				      unsigned long long itv)
{
	stub_print_net_sock6_stats(a, curr, FALSE);
}

/*
 ***************************************************************************
 * Display average IPv6 sockets statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_avg_net_sock6_stats(struct activity *a, int prev, int curr,
					  unsigned long long itv)
{
	stub_print_net_sock6_stats(a, curr, TRUE);
}

/*
 ***************************************************************************
 * Display IPv6 network traffic statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_ip6_stats(struct activity *a, int prev, int curr,
				    unsigned long long itv)
{
	struct stats_net_ip6
		*snic = (struct stats_net_ip6 *) a->buf[curr],
		*snip = (struct stats_net_ip6 *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 10, 9, 2,
		  S_VALUE(snip->InReceives6,       snic->InReceives6,       itv),
		  S_VALUE(snip->OutForwDatagrams6, snic->OutForwDatagrams6, itv),
		  S_VALUE(snip->InDelivers6,       snic->InDelivers6,       itv),
		  S_VALUE(snip->OutRequests6,      snic->OutRequests6,      itv),
		  S_VALUE(snip->ReasmReqds6,       snic->ReasmReqds6,       itv),
		  S_VALUE(snip->ReasmOKs6,         snic->ReasmOKs6,         itv),
		  S_VALUE(snip->InMcastPkts6,      snic->InMcastPkts6,      itv),
		  S_VALUE(snip->OutMcastPkts6,     snic->OutMcastPkts6,     itv),
		  S_VALUE(snip->FragOKs6,          snic->FragOKs6,          itv),
		  S_VALUE(snip->FragCreates6,      snic->FragCreates6,      itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display IPv6 network errors statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_eip6_stats(struct activity *a, int prev, int curr,
				     unsigned long long itv)
{
	struct stats_net_eip6
		*sneic = (struct stats_net_eip6 *) a->buf[curr],
		*sneip = (struct stats_net_eip6 *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 11, 9, 2,
		  S_VALUE(sneip->InHdrErrors6,     sneic->InHdrErrors6,     itv),
		  S_VALUE(sneip->InAddrErrors6,    sneic->InAddrErrors6,    itv),
		  S_VALUE(sneip->InUnknownProtos6, sneic->InUnknownProtos6, itv),
		  S_VALUE(sneip->InTooBigErrors6,  sneic->InTooBigErrors6,  itv),
		  S_VALUE(sneip->InDiscards6,      sneic->InDiscards6,      itv),
		  S_VALUE(sneip->OutDiscards6,     sneic->OutDiscards6,     itv),
		  S_VALUE(sneip->InNoRoutes6,      sneic->InNoRoutes6,      itv),
		  S_VALUE(sneip->OutNoRoutes6,     sneic->OutNoRoutes6,     itv),
		  S_VALUE(sneip->ReasmFails6,      sneic->ReasmFails6,      itv),
		  S_VALUE(sneip->FragFails6,       sneic->FragFails6,       itv),
		  S_VALUE(sneip->InTruncatedPkts6, sneic->InTruncatedPkts6, itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display ICMPv6 network traffic statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_icmp6_stats(struct activity *a, int prev, int curr,
				      unsigned long long itv)
{
	struct stats_net_icmp6
		*snic = (struct stats_net_icmp6 *) a->buf[curr],
		*snip = (struct stats_net_icmp6 *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 17, 9, 2,
		  S_VALUE(snip->InMsgs6,                    snic->InMsgs6,                    itv),
		  S_VALUE(snip->OutMsgs6,                   snic->OutMsgs6,                   itv),
		  S_VALUE(snip->InEchos6,                   snic->InEchos6,                   itv),
		  S_VALUE(snip->InEchoReplies6,             snic->InEchoReplies6,             itv),
		  S_VALUE(snip->OutEchoReplies6,            snic->OutEchoReplies6,            itv),
		  S_VALUE(snip->InGroupMembQueries6,        snic->InGroupMembQueries6,        itv),
		  S_VALUE(snip->InGroupMembResponses6,      snic->InGroupMembResponses6,      itv),
		  S_VALUE(snip->OutGroupMembResponses6,     snic->OutGroupMembResponses6,     itv),
		  S_VALUE(snip->InGroupMembReductions6,     snic->InGroupMembReductions6,     itv),
		  S_VALUE(snip->OutGroupMembReductions6,    snic->OutGroupMembReductions6,    itv),
		  S_VALUE(snip->InRouterSolicits6,          snic->InRouterSolicits6,          itv),
		  S_VALUE(snip->OutRouterSolicits6,         snic->OutRouterSolicits6,         itv),
		  S_VALUE(snip->InRouterAdvertisements6,    snic->InRouterAdvertisements6,    itv),
		  S_VALUE(snip->InNeighborSolicits6,        snic->InNeighborSolicits6,        itv),
		  S_VALUE(snip->OutNeighborSolicits6,       snic->OutNeighborSolicits6,       itv),
		  S_VALUE(snip->InNeighborAdvertisements6,  snic->InNeighborAdvertisements6,  itv),
		  S_VALUE(snip->OutNeighborAdvertisements6, snic->OutNeighborAdvertisements6, itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display ICMPv6 network errors statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_eicmp6_stats(struct activity *a, int prev, int curr,
				       unsigned long long itv)
{
	struct stats_net_eicmp6
		*sneic = (struct stats_net_eicmp6 *) a->buf[curr],
		*sneip = (struct stats_net_eicmp6 *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 11, 9, 2,
		  S_VALUE(sneip->InErrors6,        sneic->InErrors6,        itv),
		  S_VALUE(sneip->InDestUnreachs6,  sneic->InDestUnreachs6,  itv),
		  S_VALUE(sneip->OutDestUnreachs6, sneic->OutDestUnreachs6, itv),
		  S_VALUE(sneip->InTimeExcds6,     sneic->InTimeExcds6,     itv),
		  S_VALUE(sneip->OutTimeExcds6,    sneic->OutTimeExcds6,    itv),
		  S_VALUE(sneip->InParmProblems6,  sneic->InParmProblems6,  itv),
		  S_VALUE(sneip->OutParmProblems6, sneic->OutParmProblems6, itv),
		  S_VALUE(sneip->InRedirects6,     sneic->InRedirects6,     itv),
		  S_VALUE(sneip->OutRedirects6,    sneic->OutRedirects6,    itv),
		  S_VALUE(sneip->InPktTooBigs6,    sneic->InPktTooBigs6,    itv),
		  S_VALUE(sneip->OutPktTooBigs6,   sneic->OutPktTooBigs6,   itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display UDPv6 network traffic statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_net_udp6_stats(struct activity *a, int prev, int curr,
				     unsigned long long itv)
{
	struct stats_net_udp6
		*snuc = (struct stats_net_udp6 *) a->buf[curr],
		*snup = (struct stats_net_udp6 *) a->buf[prev];

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	printf("%-11s", timestamp[curr]);
	cprintf_f(NO_UNIT, 4, 9, 2,
		  S_VALUE(snup->InDatagrams6,  snuc->InDatagrams6,  itv),
		  S_VALUE(snup->OutDatagrams6, snuc->OutDatagrams6, itv),
		  S_VALUE(snup->NoPorts6,      snuc->NoPorts6,      itv),
		  S_VALUE(snup->InErrors6,     snuc->InErrors6,     itv));
	printf("\n");
}

/*
 ***************************************************************************
 * Display CPU frequency statistics. This function is used to display
 * instantaneous and average statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @curr	Index in array for current sample statistics.
 * @dispavg	True if displaying average statistics.
 ***************************************************************************
 */
void stub_print_pwr_cpufreq_stats(struct activity *a, int curr, int dispavg)
{
	int i;
	struct stats_pwr_cpufreq *spc;
	static __nr_t nr_alloc = 0;
	static unsigned long long
		*avg_cpufreq = NULL;

	if (!avg_cpufreq || (a->nr[curr] > nr_alloc)) {
		/* Allocate array of CPU frequency */
		SREALLOC(avg_cpufreq, unsigned long long, sizeof(unsigned long long) * a->nr[curr]);
		if (a->nr[curr] > nr_alloc) {
			/* Init additional space allocated */
			memset(avg_cpufreq + nr_alloc, 0,
			       sizeof(unsigned long long) * (a->nr[curr] - nr_alloc));
		}
		nr_alloc = a->nr[curr];
	}

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 7, 9);
	}

	for (i = 0; (i < a->nr[curr]) && (i < a->bitmap->b_size + 1); i++) {

		/*
		 * The size of a->buf[...] CPU structure may be different from the default
		 * sizeof(struct stats_pwr_cpufreq) value if data have been read from a file!
		 * That's why we don't use a syntax like:
		 * spc = (struct stats_pwr_cpufreq *) a->buf[...] + i;
		 */
		spc = (struct stats_pwr_cpufreq *) ((char *) a->buf[curr] + i * a->msize);

		if (!spc->cpufreq)
			/* This CPU is offline: Don't display it */
			continue;

		/*
		 * Note: @nr[curr] is in [1, NR_CPUS + 1].
		 * Bitmap size is provided for (NR_CPUS + 1) CPUs.
		 * Anyway, NR_CPUS may vary between the version of sysstat
		 * used by sadc to create a file, and the version of sysstat
		 * used by sar to read it...
		 */

		/* Should current CPU (including CPU "all") be displayed? */
		if (!(a->bitmap->b_array[i >> 3] & (1 << (i & 0x07))))
			/* No */
			continue;

		printf("%-11s", timestamp[curr]);

		if (!i) {
			/* This is CPU "all" */
			cprintf_in(IS_STR, "%s", "     all", 0);
		}
		else {
			cprintf_in(IS_INT, "     %3d", "", i - 1);
		}

		if (!dispavg) {
			/* Display instantaneous values */
			cprintf_f(NO_UNIT, 1, 9, 2,
				  ((double) spc->cpufreq) / 100);
			printf("\n");
			/*
			 * Will be used to compute the average.
			 * Note: Overflow unlikely to happen but not impossible...
			 */
			avg_cpufreq[i] += spc->cpufreq;
		}
		else {
			/* Display average values */
			cprintf_f(NO_UNIT, 1, 9, 2,
				  (double) avg_cpufreq[i] / (100 * avg_count));
			printf("\n");
		}
	}

	if (dispavg && avg_cpufreq) {
		/* Array of CPU frequency no longer needed: Free it! */
		free(avg_cpufreq);
		avg_cpufreq = NULL;
		nr_alloc = 0;
	}
}

/*
 ***************************************************************************
 * Display CPU frequency statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_pwr_cpufreq_stats(struct activity *a, int prev, int curr,
					unsigned long long itv)
{
	stub_print_pwr_cpufreq_stats(a, curr, FALSE);
}

/*
 ***************************************************************************
 * Display average CPU frequency statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_avg_pwr_cpufreq_stats(struct activity *a, int prev, int curr,
					    unsigned long long itv)
{
	stub_print_pwr_cpufreq_stats(a, curr, TRUE);
}

/*
 ***************************************************************************
 * Display fan statistics. This function is used to display
 * instantaneous and average statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @curr	Index in array for current sample statistics.
 * @dispavg	True if displaying average statistics.
 ***************************************************************************
 */
void stub_print_pwr_fan_stats(struct activity *a, int curr, int dispavg)
{
	int i;
	struct stats_pwr_fan *spc;
	static __nr_t nr_alloc = 0;
	static double *avg_fan = NULL;
	static double *avg_fan_min = NULL;

	/* Allocate arrays of fan RPMs */
	if (!avg_fan || (a->nr[curr] > nr_alloc)) {
		SREALLOC(avg_fan, double, sizeof(double) * a->nr[curr]);
		SREALLOC(avg_fan_min, double, sizeof(double) * a->nr[curr]);

		if (a->nr[curr] > nr_alloc) {
			/* Init additional space allocated */
			memset(avg_fan + nr_alloc, 0,
			       sizeof(double) * (a->nr[curr] - nr_alloc));
			memset(avg_fan_min + nr_alloc, 0,
			       sizeof(double) * (a->nr[curr] - nr_alloc));
		}
		nr_alloc = a->nr[curr];
	}

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, -2, 9);
	}

	for (i = 0; i < a->nr[curr]; i++) {
		spc = (struct stats_pwr_fan *) ((char *) a->buf[curr] + i * a->msize);

		printf("%-11s", timestamp[curr]);
		cprintf_in(IS_INT, "     %5d", "", i + 1);

		if (dispavg) {
			/* Display average values */
			cprintf_f(NO_UNIT, 2, 9, 2,
				  (double) avg_fan[i] / avg_count,
				  (double) (avg_fan[i] - avg_fan_min[i]) / avg_count);
		}
		else {
			/* Display instantaneous values */
			cprintf_f(NO_UNIT, 2, 9, 2,
				  spc->rpm,
				  spc->rpm - spc->rpm_min);
			avg_fan[i]     += spc->rpm;
			avg_fan_min[i] += spc->rpm_min;
		}

		cprintf_in(IS_STR, " %s\n", spc->device, 0);
	}

	if (dispavg && avg_fan) {
		free(avg_fan);
		free(avg_fan_min);
		avg_fan = NULL;
		avg_fan_min = NULL;
		nr_alloc = 0;
	}
}

/*
 ***************************************************************************
 * Display fan statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_pwr_fan_stats(struct activity *a, int prev, int curr,
				    unsigned long long itv)
{
	stub_print_pwr_fan_stats(a, curr, FALSE);
}

/*
 ***************************************************************************
 * Display average fan statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_avg_pwr_fan_stats(struct activity *a, int prev, int curr,
					unsigned long long itv)
{
	stub_print_pwr_fan_stats(a, curr, TRUE);
}

/*
 ***************************************************************************
 * Display device temperature statistics. This function is used to display
 * instantaneous and average statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @curr	Index in array for current sample statistics.
 * @dispavg	True if displaying average statistics.
 ***************************************************************************
 */
void stub_print_pwr_temp_stats(struct activity *a, int curr, int dispavg)
{
	int i;
	struct stats_pwr_temp *spc;
	static __nr_t nr_alloc = 0;
	static double *avg_temp = NULL;
	static double *avg_temp_min = NULL, *avg_temp_max = NULL;

	/* Allocate arrays of temperatures */
	if (!avg_temp || (a->nr[curr] > nr_alloc)) {
		SREALLOC(avg_temp, double, sizeof(double) * a->nr[curr]);
		SREALLOC(avg_temp_min, double, sizeof(double) * a->nr[curr]);
		SREALLOC(avg_temp_max, double, sizeof(double) * a->nr[curr]);

		if (a->nr[curr] > nr_alloc) {
			/* Init additional space allocated */
			memset(avg_temp + nr_alloc, 0,
			       sizeof(double) * (a->nr[curr] - nr_alloc));
			memset(avg_temp_min + nr_alloc, 0,
			       sizeof(double) * (a->nr[curr] - nr_alloc));
			memset(avg_temp_max + nr_alloc, 0,
			       sizeof(double) * (a->nr[curr] - nr_alloc));
		}
		nr_alloc = a->nr[curr];
	}

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, -2, 9);
	}

	for (i = 0; i < a->nr[curr]; i++) {
		spc = (struct stats_pwr_temp *) ((char *) a->buf[curr] + i * a->msize);

		printf("%-11s", timestamp[curr]);
		cprintf_in(IS_INT, "     %5d", "", i + 1);

		if (dispavg) {
			/* Display average values */
			cprintf_f(NO_UNIT, 1, 9, 2, (double) avg_temp[i] / avg_count);
			cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
				   (avg_temp_max[i] - avg_temp_min[i]) ?
				   ((double) (avg_temp[i] / avg_count) - avg_temp_min[i]) / (avg_temp_max[i] - avg_temp_min[i]) * 100
				   : 0.0);
		}
		else {
			/* Display instantaneous values */
			cprintf_f(NO_UNIT, 1, 9, 2, spc->temp);
			cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
				   (spc->temp_max - spc->temp_min) ?
				   (spc->temp - spc->temp_min) / (spc->temp_max - spc->temp_min) * 100
				   : 0.0);
			avg_temp[i] += spc->temp;
			/* Assume that min and max temperatures cannot vary */
			avg_temp_min[i] = spc->temp_min;
			avg_temp_max[i] = spc->temp_max;
		}

		cprintf_in(IS_STR, " %s\n", spc->device, 0);
	}

	if (dispavg && avg_temp) {
		free(avg_temp);
		free(avg_temp_min);
		free(avg_temp_max);
		avg_temp = NULL;
		avg_temp_min = NULL;
		avg_temp_max = NULL;
		nr_alloc = 0;
	}
}

/*
 ***************************************************************************
 * Display temperature statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_pwr_temp_stats(struct activity *a, int prev, int curr,
				     unsigned long long itv)
{
	stub_print_pwr_temp_stats(a, curr, FALSE);
}

/*
 ***************************************************************************
 * Display average temperature statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_avg_pwr_temp_stats(struct activity *a, int prev, int curr,
					 unsigned long long itv)
{
	stub_print_pwr_temp_stats(a, curr, TRUE);
}

/*
 ***************************************************************************
 * Display voltage inputs statistics. This function is used to display
 * instantaneous and average statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @curr	Index in array for current sample statistics.
 * @dispavg	True if displaying average statistics.
 ***************************************************************************
 */
void stub_print_pwr_in_stats(struct activity *a, int curr, int dispavg)
{
	int i;
	struct stats_pwr_in *spc;
	static __nr_t nr_alloc = 0;
	static double *avg_in = NULL;
	static double *avg_in_min = NULL, *avg_in_max = NULL;

	/* Allocate arrays of voltage inputs */
	if (!avg_in || (a->nr[curr] > nr_alloc)) {
		SREALLOC(avg_in, double, sizeof(double) * a->nr[curr]);
		SREALLOC(avg_in_min, double, sizeof(double) * a->nr[curr]);
		SREALLOC(avg_in_max, double, sizeof(double) * a->nr[curr]);

		if (a->nr[curr] > nr_alloc) {
			/* Init additional space allocated */
			memset(avg_in + nr_alloc, 0,
			       sizeof(double) * (a->nr[curr] - nr_alloc));
			memset(avg_in_min + nr_alloc, 0,
			       sizeof(double) * (a->nr[curr] - nr_alloc));
			memset(avg_in_max + nr_alloc, 0,
			       sizeof(double) * (a->nr[curr] - nr_alloc));
		}
		nr_alloc = a->nr[curr];
	}

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, -2, 9);
	}

	for (i = 0; i < a->nr[curr]; i++) {
		spc = (struct stats_pwr_in *) ((char *) a->buf[curr] + i * a->msize);

		printf("%-11s", timestamp[curr]);
		cprintf_in(IS_INT, "     %5d", "", i);

		if (dispavg) {
			/* Display average values */
			cprintf_f(NO_UNIT, 1, 9, 2, (double) avg_in[i] / avg_count);
			cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
				   (avg_in_max[i] - avg_in_min[i]) ?
				   ((double) (avg_in[i] / avg_count) - avg_in_min[i]) / (avg_in_max[i] - avg_in_min[i]) * 100
				   : 0.0);
		}
		else {
			/* Display instantaneous values */
			cprintf_f(NO_UNIT, 1, 9, 2, spc->in);
			cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
				   (spc->in_max - spc->in_min) ?
				   (spc->in - spc->in_min) / (spc->in_max - spc->in_min) * 100
				   : 0.0);
			avg_in[i] += spc->in;
			/* Assume that min and max voltage inputs cannot vary */
			avg_in_min[i] = spc->in_min;
			avg_in_max[i] = spc->in_max;
		}

		cprintf_in(IS_STR, " %s\n", spc->device, 0);
	}

	if (dispavg && avg_in) {
		free(avg_in);
		free(avg_in_min);
		free(avg_in_max);
		avg_in = NULL;
		avg_in_min = NULL;
		avg_in_max = NULL;
		nr_alloc = 0;
	}
}

/*
 ***************************************************************************
 * Display voltage inputs statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_pwr_in_stats(struct activity *a, int prev, int curr,
				   unsigned long long itv)
{
	stub_print_pwr_in_stats(a, curr, FALSE);
}

/*
 ***************************************************************************
 * Display average voltage inputs statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_avg_pwr_in_stats(struct activity *a, int prev, int curr,
				       unsigned long long itv)
{
	stub_print_pwr_in_stats(a, curr, TRUE);
}

/*
 ***************************************************************************
 * Display huge pages statistics. This function is used to
 * display instantaneous and average statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @curr	Index in array for current sample statistics.
 * @dispavg	TRUE if displaying average statistics.
 ***************************************************************************
 */
void stub_print_huge_stats(struct activity *a, int curr, int dispavg)
{
	struct stats_huge
		*smc = (struct stats_huge *) a->buf[curr];
	static unsigned long long
		avg_frhkb = 0,
		avg_tlhkb = 0;
	int unit = NO_UNIT;

	if (DISPLAY_UNIT(flags)) {
		/* Default values unit is kB */
		unit = UNIT_KILOBYTE;
	}

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
	}

	if (!dispavg) {
		/* Display instantaneous values */
		printf("%-11s", timestamp[curr]);
		cprintf_u64(unit, 2, 9,
			    (unsigned long long) smc->frhkb,
			    (unsigned long long) (smc->tlhkb - smc->frhkb));
		cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
			   smc->tlhkb ?
			   SP_VALUE(smc->frhkb, smc->tlhkb, smc->tlhkb) : 0.0);
		printf("\n");

		/* Will be used to compute the average */
		avg_frhkb += smc->frhkb;
		avg_tlhkb += smc->tlhkb;
	}
	else {
		/* Display average values */
		printf("%-11s", timestamp[curr]);
		cprintf_f(unit, 2, 9, 0,
			  (double) avg_frhkb / avg_count,
			  ((double) avg_tlhkb / avg_count) -
			  ((double) avg_frhkb / avg_count));
		cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
			   avg_tlhkb ?
			   SP_VALUE((double) avg_frhkb / avg_count,
				    (double) avg_tlhkb / avg_count,
				    (double) avg_tlhkb / avg_count) : 0.0);
		printf("\n");

		/* Reset average counters */
		avg_frhkb = avg_tlhkb = 0;
	}
}

/*
 ***************************************************************************
 * Display huge pages statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_huge_stats(struct activity *a, int prev, int curr,
				 unsigned long long itv)
{
	stub_print_huge_stats(a, curr, FALSE);
}

/*
 ***************************************************************************
 * Display huge pages statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_avg_huge_stats(struct activity *a, int prev, int curr,
				     unsigned long long itv)
{
	stub_print_huge_stats(a, curr, TRUE);
}

/*
 ***************************************************************************
 * Display CPU weighted frequency statistics. This function is used to
 * display instantaneous and average statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
void print_pwr_wghfreq_stats(struct activity *a, int prev, int curr,
			     unsigned long long itv)
{
	int i, k;
	struct stats_pwr_wghfreq *spc, *spp, *spc_k, *spp_k;
	unsigned long long tis, tisfreq;

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 7, 9);
	}

	for (i = 0; (i < a->nr[curr]) && (i < a->bitmap->b_size + 1); i++) {

		/*
		 * The size of a->buf[...] CPU structure may be different from the default
		 * sizeof(struct stats_pwr_wghfreq) value if data have been read from a file!
		 * That's why we don't use a syntax like:
		 * spc = (struct stats_pwr_wghfreq *) a->buf[...] + i;
		 */
		spc = (struct stats_pwr_wghfreq *) ((char *) a->buf[curr] + i * a->msize * a->nr2);
		spp = (struct stats_pwr_wghfreq *) ((char *) a->buf[prev] + i * a->msize * a->nr2);

		/*
		 * Note: a->nr is in [1, NR_CPUS + 1].
		 * Bitmap size is provided for (NR_CPUS + 1) CPUs.
		 * Anyway, NR_CPUS may vary between the version of sysstat
		 * used by sadc to create a file, and the version of sysstat
		 * used by sar to read it...
		 */

		/* Should current CPU (including CPU "all") be displayed? */
		if (!(a->bitmap->b_array[i >> 3] & (1 << (i & 0x07))))
			/* No */
			continue;

		/* Yes: Display it */
		printf("%-11s", timestamp[curr]);

		if (!i) {
			/* This is CPU "all" */
			cprintf_in(IS_STR, "%s", "     all", 0);
		}
		else {
			cprintf_in(IS_INT, "     %3d", "", i - 1);
		}

		tisfreq = 0;
		tis = 0;

		for (k = 0; k < a->nr2; k++) {

			spc_k = (struct stats_pwr_wghfreq *) ((char *) spc + k * a->msize);
			if (!spc_k->freq)
				break;
			spp_k = (struct stats_pwr_wghfreq *) ((char *) spp + k * a->msize);

			tisfreq += (spc_k->freq / 1000) *
			           (spc_k->time_in_state - spp_k->time_in_state);
			tis     += (spc_k->time_in_state - spp_k->time_in_state);
		}

		/* Display weighted frequency for current CPU */
		cprintf_f(NO_UNIT, 1, 9, 2,
			  tis ? ((double) tisfreq) / tis : 0.0);
		printf("\n");
	}
}

/*
 ***************************************************************************
 * Display USB devices statistics. This function is used to
 * display instantaneous and summary statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @curr	Index in array for current sample statistics.
 * @dispavg	TRUE if displaying average statistics.
 ***************************************************************************
 */
void stub_print_pwr_usb_stats(struct activity *a, int curr, int dispavg)
{
	int i, j;
	char fmt[16];
	struct stats_pwr_usb *suc, *sum;

	if (dis) {
		printf("\n%-11s     BUS  idvendor    idprod  maxpower",
		       (dispavg ? _("Summary:") : timestamp[!curr]));
		printf(" %-*s product\n", MAX_MANUF_LEN - 1, "manufact");
	}

	for (i = 0; i < a->nr[curr]; i++) {
		suc = (struct stats_pwr_usb *) ((char *) a->buf[curr] + i * a->msize);

		printf("%-11s", (dispavg ? _("Summary:") : timestamp[curr]));
		cprintf_in(IS_INT, "  %6d", "", suc->bus_nr);
		cprintf_x(2, 9,
			  suc->vendor_id,
			  suc->product_id);
		cprintf_u64(NO_UNIT, 1, 9,
			    /* bMaxPower is expressed in 2 mA units */
			    (unsigned long long) (suc->bmaxpower << 1));

		snprintf(fmt, 16, " %%-%ds", MAX_MANUF_LEN - 1);
		cprintf_s(IS_STR, fmt, suc->manufacturer);
		cprintf_s(IS_STR, " %s\n", suc->product);

		if (!dispavg) {
			/* Save current USB device in summary list */
			for (j = 0; j < a->nr_allocated; j++) {
				sum = (struct stats_pwr_usb *) ((char *) a->buf[2] + j * a->msize);

				if ((sum->bus_nr     == suc->bus_nr) &&
				    (sum->vendor_id  == suc->vendor_id) &&
				    (sum->product_id == suc->product_id))
					/* USB device found in summary list */
					break;
				if (!sum->bus_nr) {
					/*
					 * Current slot is free:
					 * Save USB device in summary list.
					 */
					*sum = *suc;
					break;
				}
			}
			if (j == a->nr_allocated) {
				/*
				 * No free slot has been found for current device.
				 * So enlarge buffers then save device in list.
				 */
				reallocate_all_buffers(a);
				sum = (struct stats_pwr_usb *) ((char *) a->buf[2] + j * a->msize);
				*sum = *suc;
			}
		}
	}
}

/*
 ***************************************************************************
 * Display USB devices statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_pwr_usb_stats(struct activity *a, int prev, int curr,
				   unsigned long long itv)
{
	stub_print_pwr_usb_stats(a, curr, FALSE);
}

/*
 ***************************************************************************
 * Display average USB devices statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_avg_pwr_usb_stats(struct activity *a, int prev, int curr,
					unsigned long long itv)
{
	stub_print_pwr_usb_stats(a, 2, TRUE);
}

/*
 ***************************************************************************
 * Display filesystems statistics. This function is used to
 * display instantaneous and average statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @curr	Index in array for current sample statistics.
 * @dispavg	TRUE if displaying average statistics.
 ***************************************************************************
 */
__print_funct_t stub_print_filesystem_stats(struct activity *a, int curr, int dispavg)
{
	int i, j;
	struct stats_filesystem *sfc, *sfm;
	int unit = NO_UNIT;

	if (DISPLAY_UNIT(flags)) {
		/* Default values unit is B */
		unit = UNIT_BYTE;
	}

	if (dis) {
		print_hdr_line((dispavg ? _("Summary:") : timestamp[!curr]),
			       a, FIRST + DISPLAY_MOUNT(a->opt_flags), -1, 9);
	}

	for (i = 0; i < a->nr[curr]; i++) {
		sfc = (struct stats_filesystem *) ((char *) a->buf[curr] + i * a->msize);

		printf("%-11s", (dispavg ? _("Summary:") : timestamp[curr]));
		cprintf_f(unit, 2, 9, 0,
			  unit < 0 ? (double) sfc->f_bfree / 1024 / 1024 : (double) sfc->f_bfree,
			  unit < 0 ? (double) (sfc->f_blocks - sfc->f_bfree) / 1024 / 1024 :
				     (double) (sfc->f_blocks - sfc->f_bfree));
		cprintf_pc(DISPLAY_UNIT(flags), 2, 9, 2,
			   /* f_blocks is not zero. But test it anyway ;-) */
			   sfc->f_blocks ? SP_VALUE(sfc->f_bfree, sfc->f_blocks, sfc->f_blocks)
			   : 0.0,
			   sfc->f_blocks ? SP_VALUE(sfc->f_bavail, sfc->f_blocks, sfc->f_blocks)
			   : 0.0);
		cprintf_u64(NO_UNIT, 2, 9,
			    (unsigned long long) sfc->f_ffree,
			    (unsigned long long) (sfc->f_files - sfc->f_ffree));
		cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
			   sfc->f_files ? SP_VALUE(sfc->f_ffree, sfc->f_files, sfc->f_files)
			   : 0.0);
		cprintf_in(IS_STR, " %s\n",
			   DISPLAY_MOUNT(a->opt_flags) ? sfc->mountp : sfc->fs_name, 0);

		if (!dispavg) {
			/* Save current filesystem in summary list */
			for (j = 0; j < a->nr_allocated; j++) {
				sfm = (struct stats_filesystem *) ((char *) a->buf[2] + j * a->msize);

				if (!strcmp(sfm->fs_name, sfc->fs_name) ||
				    !sfm->f_blocks) {
					/*
					 * Filesystem found in list (then save again its stats)
					 * or free slot (end of list).
					 */
					*sfm = *sfc;
					break;
				}
			}
			if (j == a->nr_allocated) {
				/*
				 * No free slot has been found for current filesystem.
				 * So enlarge buffers then save filesystem in list.
				 */
				reallocate_all_buffers(a);
				sfm = (struct stats_filesystem *) ((char *) a->buf[2] + j * a->msize);
				*sfm = *sfc;
			}
		}
	}
}

/*
 ***************************************************************************
 * Display filesystems statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_filesystem_stats(struct activity *a, int prev, int curr,
				       unsigned long long itv)
{
	stub_print_filesystem_stats(a, curr, FALSE);
}

/*
 ***************************************************************************
 * Display average filesystems statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_avg_filesystem_stats(struct activity *a, int prev, int curr,
					   unsigned long long itv)
{
	stub_print_filesystem_stats(a, 2, TRUE);
}

/*
 ***************************************************************************
 * Display Fibre Channel HBA statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_fchost_stats(struct activity *a, int prev, int curr,
				   unsigned long long itv)
{
	int i, j, j0, found;
	struct stats_fchost *sfcc,*sfcp;

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, -1, 9);
	}

	for (i = 0; i < a->nr[curr]; i++) {

		found = FALSE;

		if (a->nr[prev] > 0) {
			sfcc = (struct stats_fchost *) ((char *) a->buf[curr] + i * a->msize);

			/* Look for corresponding structure in previous iteration */
			j = i;

			if (j >= a->nr[prev]) {
				j = a->nr[prev] - 1;
			}

			j0 = j;

			do {
				sfcp = (struct stats_fchost *) ((char *) a->buf[prev] + j * a->msize);
				if (!strcmp(sfcc->fchost_name, sfcp->fchost_name)) {
					found = TRUE;
					break;
				}

				if (++j >= a->nr[prev]) {
					j = 0;
				}
			}
			while (j != j0);
		}

		if (!found)
			continue;

		printf("%-11s", timestamp[curr]);
		cprintf_f(NO_UNIT, 4, 9, 2,
			  S_VALUE(sfcp->f_rxframes, sfcc->f_rxframes, itv),
			  S_VALUE(sfcp->f_txframes, sfcc->f_txframes, itv),
			  S_VALUE(sfcp->f_rxwords,  sfcc->f_rxwords,  itv),
			  S_VALUE(sfcp->f_txwords,  sfcc->f_txwords,  itv));
		cprintf_in(IS_STR, " %s\n", sfcc->fchost_name, 0);
	}
}

/*
 ***************************************************************************
 * Display softnet statistics.
 *
 * IN:
 * @a		Activity structure with statistics.
 * @prev	Index in array where stats used as reference are.
 * @curr	Index in array for current sample statistics.
 * @itv		Interval of time in 1/100th of a second.
 ***************************************************************************
 */
__print_funct_t print_softnet_stats(struct activity *a, int prev, int curr,
				    unsigned long long itv)
{
	struct stats_softnet
		*ssnc = (struct stats_softnet *) a->buf[curr],
		*ssnp = (struct stats_softnet *) a->buf[prev];
	int i;

	if (dis) {
		print_hdr_line(timestamp[!curr], a, FIRST, 7, 9);
	}

	for (i = 0; (i < a->nr[curr]) && (i < a->bitmap->b_size + 1); i++) {

		/*
		 * The size of a->buf[...] CPU structure may be different from the default
		 * sizeof(struct stats_pwr_cpufreq) value if data have been read from a file!
		 * That's why we don't use a syntax like:
		 * ssnc = (struct stats_softnet *) a->buf[...] + i;
                 */
                ssnc = (struct stats_softnet *) ((char *) a->buf[curr] + i * a->msize);
                ssnp = (struct stats_softnet *) ((char *) a->buf[prev] + i * a->msize);

		/*
		 * Note: a->nr is in [1, NR_CPUS + 1].
		 * Bitmap size is provided for (NR_CPUS + 1) CPUs.
		 * Anyway, NR_CPUS may vary between the version of sysstat
		 * used by sadc to create a file, and the version of sysstat
		 * used by sar to read it...
		 */

		/* Should current CPU (including CPU "all") be displayed? */
		if (!(a->bitmap->b_array[i >> 3] & (1 << (i & 0x07))))
			/* No */
			continue;

		printf("%-11s", timestamp[curr]);

		if (!i) {
			/* This is CPU "all" */
			cprintf_in(IS_STR, " %s", "    all", 0);
		}
		else {
			cprintf_in(IS_INT, " %7d", "", i - 1);
		}

		cprintf_f(NO_UNIT, 5, 9, 2,
			  S_VALUE(ssnp->processed,    ssnc->processed,    itv),
			  S_VALUE(ssnp->dropped,      ssnc->dropped,      itv),
			  S_VALUE(ssnp->time_squeeze, ssnc->time_squeeze, itv),
			  S_VALUE(ssnp->received_rps, ssnc->received_rps, itv),
			  S_VALUE(ssnp->flow_limit,   ssnc->flow_limit,   itv));
		printf("\n");
	}
}