38 lines
748 B
Bash
38 lines
748 B
Bash
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#!/bin/sh
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#
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# Bind interface queues to different cpu cores to reduce
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# context switching and cpu cache misses
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#
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# start from this core
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cpu=0
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interfaces="ix0 ix1"
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release=0
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# if "-r" is given as parameter, threads affinity will be unbound
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if [ $# -gt 0 ]; then
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if [ $1 = "-r" ]; then
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release=1
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fi
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fi
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basedir=`dirname $0`
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for int in ${interfaces}; do
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for t in `procstat -ak | grep "${int} que" | awk '{print $2}'`; do
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if [ -n "$t" ]; then
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if [ $release -gt 0 ]; then
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echo "Unbinding ${int} kernel queue (thread #${t})"
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cpuset -l all -t $t
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else
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echo "Binding ${int} kernel queue (thread #${t}) -> CPU${cpu}"
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cpu=`expr $cpu + 1`
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cpuset -l $cpu -t $t
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fi
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fi
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done
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done
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