Measuring context swap time

[Xingyuan Chen]

Hi All,

I am a Linux kernel newbie. Now I want to write a kernel module that can
measure the context swap time between two processes using hrtimer.
How do I implement this?
More specifically,  how do I access different processes in kernel module.
I've read Linux kernel module programming guide but still don't have a clue.
Is there any other useful references on Linux kernel modules?

Any help will be greatly appreciated.

Eddie
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