On Tue, May 20, 2014 at 9:00 AM, Nicolas Pitre <nicolas.pitre@xxxxxxxxxx> wrote:
> On Mon, 19 May 2014, Abhilash Kesavan wrote:
>
>> Hi Nicolas,
>>
>> On Thu, May 15, 2014 at 10:22 PM, Nicolas Pitre
>> <nicolas.pitre@xxxxxxxxxx> wrote:
>> > Once you implement full cluster shutdown I can provide you with another
>> > script stressing that part.
>> I am done with the cluster power on/off code and it seems to work fine
>> with bL_switcher. Can you please provide me with your stress script.
>
> Here's the script. Credits go to Dave Martin for this one.
>
> The script assumes that cluster 0 comprises cpus 0 to 3 and cluster 1
> comprises cpus 4 to 7. You need to edit it otherwise.
>
> ----- >8
> #!/bin/bash
>
> echo 0 >/sys/kernel/bL_switcher/active
> sleep 1
>
> pids=
>
> for x in \
> "cluster=cluster0; cpus='cpu0 cpu1 cpu2 cpu3'" \
> "cluster=cluster1; cpus='cpu4 cpu5 cpu6 cpu7'"
> do
> eval "$x"
> eval "\
> $cluster () {
> pids=
> `for cpu in $cpus; do cat <<EOF; done
> (sleep .00\\$RANDOM; echo \\$1 >/sys/devices/system/cpu/$cpu/online)&
> echo \\$1 >/sys/devices/system/cpu/$cpu/online&
> pids=\\$pids\ \\$!
> EOF`
> wait \$pids
> if [ \$1 = 0 ]; then
> echo \"\$n: $cluster off\"
> else
> echo \"\$n: $cluster on\"
> fi
> }"
> done
>
> n=0
> while :; do
> : $((++n))
> cluster1 1; cluster0 0
> cluster0 1; cluster1 0
> done
> ----- >8
Thanks Nicolas. Will test with the script and post the patch if it works.
Regards,
Abhilash
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