Messages in this thread | | | Subject | Re: [PATCH] schedstat-2.6.0-test5-A1 measuring process scheduling latency | Date | Thu, 11 Sep 2003 18:02:23 -0700 | From | Rick Lindsley <> |
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An alternative is my microstate accounting patch, which lets you do the same thing (with rather less intrusiveness) but per-thread.
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My own observations tend me to the idea that a process waiting for disk I/O isn't awoken fast enough, at least on my laptop.
I'm not sure that it's any less or more intrusive, but it's at least another way of doing the same thing. So since you've taken some measurements, what's the length of time you find your process waits to hit the processor after getting the I/O it needs? What's the time it seems to wait when it skips (what's the cutoff at which you hear a skip versus don't hear one?)
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