[CentOS] OT: Howto to capture taskset output command
John Doe
jdmls at yahoo.com
Wed Feb 26 13:51:02 UTC 2014
From: C. L. Martinez <carlopmart at 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
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