Re: [CentOS] OT: Howto to capture taskset output command

From: C. L. Martinez carlopmart@gmail.com

I am trying to set processor affinity for a specific process using a shell script without result. Script:

#!/bin/sh -x

cpu_affinity_ok="2" cpu_affinity="taskset -p -c `cat /tmp/test.pid` | awk '{print $6}'"

if [ -f /tmp/test.pid ]; then     if [ "$cpu_affinity" == "$cpu_affinity_ok" ]; then       exit 0     else         taskset -p -c 2 `cat /tmp/test.pid`     fi fi

This script doesn't works:

As you can see, function compare under "if" statement doesn't works ...

This works for me:

function cpu_affinity() {   taskset -p -c $1 | awk ' { print $6 } ' }

and

PID=`cat /tmp/test.pid` if [ $(cpu_affinity $PID) -eq $cpu_affinity_ok ]; then

JD