First Commit for mTCP pcap porting project #340
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Checked 20KB data transfer successfully need to work on large file transfer in mtcp/src ,, need to make with flags: "-DDISABLE_DPDK -DDISABLE_HWCSUM"
Problem Found:
- in mtcp_epoll_wait, stuck at pthread_cond_wait(&ep->epoll_cond,..)
- usr_q is empty so app thread keeps waiting
- seems like concurrency timing issue
Problem Found: - pcap_dispatch was bottleneck(since handle was opened for blocking I/O , mtcp thread was never returned from pcap_dipatch) Solved: - set pcap handle as non blocking mode Can observe stable 100MB file tranfer between server and client
--changes
1. reflected change on interface name and IP address
2. removed some wasteful deep copy logic at pcap_module.c
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[Changes]
made "pcap_module.c", which does simlar things as dpdk_moduel and psio_module
adjusted "core.c" and "io_module.c" and "config.c" to interact with pcap io engine
changed config file (1 core used, port = veth)
[progress]
Checked 20KB data transfer successfully
[Things to do]
need to work on large file transfer