creation, context switch time of process and thread

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Can someone give the �information of following typical values in Kernel 3.x
in a 2Ghz machine with sufficient RAM

Process creation time ?
Process context switch time ?
pthread creation time ?
pthread context swich �time ?
kernel thread creation time ?
kernel thread context swich �time ?

What is the best way to measure these values?
I wrote �a simple test for measuring�kernel thread context switch�
A simple test like

1. get_time(start)
2. schedule();
3. get_time(end)
4. print( context sw time = (end-start) )

But it doesnt seem to work correctly.


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