Messages in this thread | | | Date | Thu, 07 Nov 2002 16:48:03 -0800 | From | Andrew Morton <> | Subject | Re: [BENCHMARK] 2.5.46-mm1 with contest |
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Alan Willis wrote: > > > Why? We are preempting during the generic file write/read routines, I > > bet, which can otherwise be long periods of latency. CPU is up and I > > bet the throughput is down, but his test is getting the attention it > > wants. > > I'm curious, would running contest after a fresh boot and with profile=2 > provide a profile that tells exactly where time is being spent? Since > about 2.5.45 I've had some strange slow periods, and starting aterm > would take a while, redrawing windows in X would slow down, it 'feels' > like my workstation becomes a laptop that is just waking up. Sometimes > this is after only a few minutes of inactivity, or after switching > virtual desktops in kde, or when I have alot of aterm instances running.
- Run `vmstat 1', and see if the slowdowns coincide with any unusual IO activity.
- Could be the scheduler. Try renice -19 $(pidof X) $(pidof aterm) $(pidof other stuff) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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