Messages in this thread | | | Date | Sun, 11 May 2003 22:08:40 -0700 | From | William Lee Irwin III <> | Subject | Re: how to measure scheduler latency on powerpc? realfeel doesn't work due to /dev/rtc issues |
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"William" == William Lee Irwin, <William> writes: William> Not at all. Just stamp at wakeup and difference when it runs.
On Mon, May 12, 2003 at 03:04:09PM +1000, Peter Chubb wrote: > That then doesn't include interrupt latency. The nice thing about the > amlat tests is that the test predicts when the next interrupt should > occur, then measures the time between that prediction and the process > running in userspace. If you just timestamp at wakeup, you miss all > the time between interrupt generation and noticing that the process is > to wake up.
Of course. But that is not the scheduler's problem.
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