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Add instruction counter capability to test.c #83

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sbates130272 opened this issue Jul 5, 2021 · 0 comments
Open

Add instruction counter capability to test.c #83

sbates130272 opened this issue Jul 5, 2021 · 0 comments

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@sbates130272
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When benchmarking eBPF programs it is useful to have the test program output the number of eBPF instructions executed as well as the total number of instructions needed to run the VM (or the JIT when appropriate).

I'll take a stab at this and do a PR for it if I get something working that I like.
sbates130272 added a commit to sbates130272/ubpf that referenced this issue Jul 19, 2021
@sbates130272
ebpf_run: Refactor code to assist in adding instruction counting.
9f11621 
Refactor code to add a ubpf_run function so it is easier to add
instruction counting for both the VM and JIT cases. The counting
itself will be added in the next few patches.

Fixes iovisor#83.
sbates130272 added a commit to sbates130272/ubpf that referenced this issue Jul 21, 2021
@sbates130272
ebpf_run: Refactor code to assist in adding instruction counting.
5bf89a2 
Refactor code to add a ubpf_run function so it is easier to add
instruction counting for both the VM and JIT cases. The counting
itself will be added in the next few patches.

Fixes iovisor#83.
sbates130272 added a commit to sbates130272/ubpf that referenced this issue Jul 22, 2021
@sbates130272
ubpf_inst_cnt: Add instruction counting.
1e051bc 
Add a new struct that can carry information about the various types of
instruction counting we wish to perform.

In order to count the instructions executed on the underlying
bare-metal machine we leverage the perf_event framework (Linux
only). This uses ioctls to initialize and then measure the relevant
counters to ascertain how many instrucitons have been executing on the
CPU.

Note that access to these counters requires elevated privileges so
that may limit who can run the program in this mode.

Fixes iovisor#83.
sbates130272 added a commit to sbates130272/ubpf that referenced this issue Jul 22, 2021
@sbates130272
ubpf_inst_cnt: Add instruction counting.
3479492 
Add a new struct that can carry information about the various types of
instruction counting we wish to perform.

In order to count the instructions executed on the underlying
bare-metal machine we leverage the perf_event framework (Linux
only). This uses ioctls to initialize and then measure the relevant
counters to ascertain how many instrucitons have been executing on the
CPU.

Note that access to these counters requires elevated privileges so
that may limit who can run the program in this mode.

Fixes iovisor#83.
sbates130272 added a commit to sbates130272/ubpf that referenced this issue Jul 28, 2021
@sbates130272
ubpf_inst_cnt: Add instruction counting.
e6186fa 
Add a new struct that can carry information about the various types of
instruction counting we wish to perform. Embed this struct into the
struct vm so it can be enabled without changing the prototypes for
_exec etc. Add an set function so library users can triggerenable
instruction counting and get results.

In order to count the instructions executed on the underlying
bare-metal machine we leverage the perf_event framework (Linux
only). This uses ioctls to initialize and then measure the relevant
counters to ascertain how many instrucitons have been executing on the
CPU.

Note that access to these counters requires elevated privileges so
that may limit who can run the program in this mode.

Fixes iovisor#83.
sbates130272 added a commit to sbates130272/ubpf that referenced this issue Jul 29, 2021
@sbates130272
ubpf_inst_cnt: Add instruction counting.
1c0eabc 
Add a new struct that can carry information about the various types of
instruction counting we wish to perform. Embed this struct into the
struct vm so it can be enabled without changing the prototypes for
_exec etc. Add an set function so library users can enable
instruction counting and get results.

In order to count the instructions executed on the underlying
bare-metal machine we leverage the perf_event framework (Linux
only). This uses ioctls to initialize and then measure the relevant
counters to ascertain how many instructions have been executing on the
CPU.

Note that access to these counters requires elevated privileges so
that may limit who can run the program in this mode.

Fixes iovisor#83.
sbates130272 added a commit to sbates130272/ubpf that referenced this issue Aug 5, 2021
@sbates130272
ubpf_inst_cnt: Add instruction counting.
2848985 
Add a new struct that can carry information about the various types of
instruction counting we wish to perform. Embed this struct into the
struct vm so it can be enabled without changing the prototypes for
_exec etc. Add an set function so library users can enable
instruction counting and get results.

In order to count the instructions executed on the underlying
bare-metal machine we leverage the perf_event framework (Linux
only). This uses ioctls to initialize and then measure the relevant
counters to ascertain how many instructions have been executing on the
CPU.

Note that access to these counters requires elevated privileges so
that may limit who can run the program in this mode.

Fixes iovisor#83.
sbates130272 added a commit to sbates130272/ubpf that referenced this issue Aug 5, 2021
@sbates130272
ubpf_inst_cnt: Add instruction counting.
500d073 
Add a new struct that can carry information about the various types of
instruction counting we wish to perform. Embed this struct into the
struct vm so it can be enabled without changing the prototypes for
_exec etc. Add an set function so library users can enable
instruction counting and get results.

In order to count the instructions executed on the underlying
bare-metal machine we leverage the perf_event framework (Linux
only). This uses ioctls to initialize and then measure the relevant
counters to ascertain how many instructions have been executing on the
CPU.

Note that access to these counters requires elevated privileges so
that may limit who can run the program in this mode.

Fixes iovisor#83.
sbates130272 added a commit to sbates130272/ubpf that referenced this issue Aug 5, 2021
@sbates130272
ubpf_inst_cnt: Add instruction counting.
48800a2 
Add a new struct that can carry information about the various types of
instruction counting we wish to perform. Embed this struct into the
struct vm so it can be enabled without changing the prototypes for
_exec etc. Add an set function so library users can enable
instruction counting and get results.

In order to count the instructions executed on the underlying
bare-metal machine we leverage the perf_event framework (Linux
only). This uses ioctls to initialize and then measure the relevant
counters to ascertain how many instructions have been executing on the
CPU.

Note that access to these counters requires elevated privileges so
that may limit who can run the program in this mode.

Fixes iovisor#83.
sbates130272 added a commit to sbates130272/ubpf that referenced this issue Aug 5, 2021
@sbates130272
ubpf_inst_cnt: Add instruction counting.
4e2d75e 
Add a new struct that can carry information about the various types of
instruction counting we wish to perform. Embed this struct into the
struct vm so it can be enabled without changing the prototypes for
_exec etc. Add an set function so library users can enable
instruction counting and get results.

In order to count the instructions executed on the underlying
bare-metal machine we leverage the perf_event framework (Linux
only). This uses ioctls to initialize and then measure the relevant
counters to ascertain how many instructions have been executing on the
CPU.

Note that access to these counters requires elevated privileges so
that may limit who can run the program in this mode.

Fixes iovisor#83.
sbates130272 added a commit to sbates130272/ubpf that referenced this issue Aug 5, 2021
@sbates130272
ubpf_inst_cnt: Add instruction counting.
93c883d 
Add a new struct that can carry information about the various types of
instruction counting we wish to perform. Embed this struct into the
struct vm so it can be enabled without changing the prototypes for
_exec etc. Add an set function so library users can enable
instruction counting and get results.

In order to count the instructions executed on the underlying
bare-metal machine we leverage the perf_event framework (Linux
only). This uses ioctls to initialize and then measure the relevant
counters to ascertain how many instructions have been executing on the
CPU.

Note that access to these counters requires elevated privileges so
that may limit who can run the program in this mode.

Fixes iovisor#83.
sbates130272 added a commit to sbates130272/ubpf that referenced this issue Sep 8, 2021
@sbates130272
ubpf_inst_cnt: Add instruction counting.
3b6bf79 
Add a new struct that can carry information about the various types of
instruction counting we wish to perform. Embed this struct into the
struct vm so it can be enabled without changing the prototypes for
_exec etc. Add an set function so library users can enable
instruction counting and get results.

In order to count the instructions executed on the underlying
bare-metal machine we leverage the perf_event framework (Linux
only). This uses ioctls to initialize and then measure the relevant
counters to ascertain how many instructions have been executing on the
CPU.

Note that access to these counters requires elevated privileges so
that may limit who can run the program in this mode.

Fixes iovisor#83.
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