Created
June 25, 2015 12:25
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irq_balance_habrahabr.sh
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#!/bin/bash | |
# from http://habrahabr.ru/post/108240/ | |
ncpus=`grep -ciw ^processor /proc/cpuinfo` | |
test "$ncpus" -gt 1 || exit 1 | |
n=0 | |
for irq in `cat /proc/interrupts | grep eth | awk '{print $1}' | sed s/\://g` | |
do | |
f="/proc/irq/$irq/smp_affinity" | |
test -r "$f" || continue | |
cpu=$[$ncpus - ($n % $ncpus) - 1] | |
if [ $cpu -ge 0 ] | |
then | |
mask=`printf %x $[2 ** $cpu]` | |
echo "Assign SMP affinity: eth queue $n, irq $irq, cpu $cpu, mask 0x$mask" | |
echo "$mask" > "$f" | |
let n+=1 | |
fi | |
done |
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(dont ask me why, hehe) On php