General :: Find What Task Is Running On A Particular Cpu Core?

Sep 17, 2010

I am using Kernel 2.6.35.4 on an Intel Core2Duo based system.

1) I have to find on which core a particular task is running on .
OR
2) I have to just log whenever my task is scheduled on any of the cores with the cpu core number & timestamp info. I am ready to modify the kernel to do printk or some logging . I guess there used to be 2 fields called 'processor' and 'last_processor' in task_struct in older kernels which probably had this information .

So what do I do to find out on which core a particular task is running on ?

Or ,

Are there any utilities that are simple-to-use and can display the tasks that are running on each of the cores , including the cpu core info ? top , mpstat etc do not tell you on which cpu core a task is running on .

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I think there are possible:

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The cpuinfo:

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model : 26
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