How to execute something on a specified CPU

kfpanda · 2012-06-26 14:44:26

I want to write a simple test bash script which implements a function on the CPU of my choice.
How do I specify the function and the target CPU ?
Thank you

karol · 2012-06-26 18:18:30

http://linuxcommand.org/man_pages/taskset1.html

kfpanda · 2012-06-26 18:45:31

I wrote a kernel module and am using the functions sched_setaffinity() to the affinity .. I have included "linux/sched.h" in the kernel module
However when I build the module, I am get the error that the sched_setaffinity() is undefined.
What might be the solution ?Thank you

Cloudef · 2012-06-26 18:58:36

@kfpanda try defining _GNU_SOURCE before including <sched.h>

Last edited by Cloudef (2012-06-26 19:00:53)

kfpanda · 2012-06-26 21:59:50

I discovered the solution to my problem. I needed the kernel to have these function symbols sched_setaffinity to be exported

Darksoul71 · 2012-06-27 20:47:04

Please do not forget to add solved to your title.
Thanks...

Arch Linux

#1 2012-06-26 14:44:26

How to execute something on a specified CPU

#2 2012-06-26 18:18:30

Re: How to execute something on a specified CPU

#3 2012-06-26 18:45:31

Re: How to execute something on a specified CPU

#4 2012-06-26 18:58:36

Re: How to execute something on a specified CPU

#5 2012-06-26 21:59:50

Re: How to execute something on a specified CPU

#6 2012-06-27 20:47:04

Re: How to execute something on a specified CPU

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