Messages in this thread | | | Subject | Re: preempt-rt, NUMA and strange latency traces | From | Sébastien Dugué <> | Date | Thu, 09 Feb 2006 12:24:35 +0100 |
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On Thu, 2006-02-09 at 01:04 -0500, Lee Revell wrote: > On Wed, 2006-02-08 at 11:45 +0100, Sébastien Dugué wrote: > > The more I think about it, the more I tend to believe it's hardware > > related. It seems as if the CPU just hangs for ~27 ms before > > resuming processing. > > That would be an exceptionally long latency - you would probably notice > it if the mouse froze, VOIP dropped out, ping stops, etc for 30ms. >
It's a test machine and I use it remotely with console redirected so no mouse, no RT applications aside from my silly nanosleep() loop. But I do notice that that test sometimes takes more time (ie when I get those weird latencies).
Sébastien.
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