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This script pktgen_bench_xmit_mode_netif_receive.sh is a benchmark
script, which can be used for benchmarking part of the network stack.
This can be used for performance improving or catching regression in
that area.
The script is developed for benchmarking ingress qdisc path, original
idea by Alexei Starovoitov. This script don't really need any
hardware. This is achieved via the recently introduced stack inject
feature "xmit_mode netif_receive". See commit
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|---|---|---|
| .. | ||
| functions.sh | ||
| parameters.sh | ||
| pktgen_bench_xmit_mode_netif_receive.sh | ||
| pktgen_sample01_simple.sh | ||
| pktgen_sample02_multiqueue.sh | ||
| pktgen_sample03_burst_single_flow.sh | ||
| pktgen.conf-1-1-flows | ||
| pktgen.conf-1-1-ip6 | ||
| pktgen.conf-1-1-ip6-rdos | ||
| pktgen.conf-1-1-rdos | ||
| pktgen.conf-1-2 | ||
| README.rst | ||
Sample and benchmark scripts for pktgen (packet generator) ========================================================== This directory contains some pktgen sample and benchmark scripts, that can easily be copied and adjusted for your own use-case. General doc is located in kernel: Documentation/networking/pktgen.txt Helper include files ==================== This directory contains two helper shell files, that can be "included" by shell source'ing. Namely "functions.sh" and "parameters.sh". Common parameters ----------------- The parameters.sh file support easy and consistant parameter parsing across the sample scripts. Usage example is printed on errors:: Usage: ./pktgen_sample01_simple.sh [-vx] -i ethX -i : ($DEV) output interface/device (required) -s : ($PKT_SIZE) packet size -d : ($DEST_IP) destination IP -m : ($DST_MAC) destination MAC-addr -t : ($THREADS) threads to start -c : ($SKB_CLONE) SKB clones send before alloc new SKB -b : ($BURST) HW level bursting of SKBs -v : ($VERBOSE) verbose -x : ($DEBUG) debug The global variable being set is also listed. E.g. the required interface/device parameter "-i" sets variable $DEV. Common functions ---------------- The functions.sh file provides; Three different shell functions for configuring the different components of pktgen: pg_ctrl(), pg_thread() and pg_set(). These functions correspond to pktgens different components. * pg_ctrl() control "pgctrl" (/proc/net/pktgen/pgctrl) * pg_thread() control the kernel threads and binding to devices * pg_set() control setup of individual devices See sample scripts for usage examples.