* Measuring CPU time with getrusage
@ 2010-01-16 13:34 Marco Almeida
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From: Marco Almeida @ 2010-01-16 13:34 UTC (permalink / raw)
To: linux-kernel
Hi,
I'm trying to measure the CPU time of several algorithms (some written
in C others in Python) by using getrusage() after wait() for the child
process to end.
On a machine with hypterthreading, the measured user times depend a
lot on the system load of the machine. A heavy system load sometimes
increases the measured time by 10x!
Is there a better way to measure the used CPU time of a given process
(or part of a program) or have I missed some important fact?
Any help appreciated.
Thanks,
Marco
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