Messages in this thread | | | Subject | Re: BFS vs. mainline scheduler benchmarks and measurements | From | Mike Galbraith <> | Date | Thu, 10 Sep 2009 12:57:31 +0200 |
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On Thu, 2009-09-10 at 12:28 +0200, Jens Axboe wrote:
> No difference. Then I tried switching NO_NEW_FAIR_SLEEPERS on, and then > I get: > > Performance counter stats for 'xmodmap .xmodmap-carl': > > 9.009137 task-clock-msecs # 0.447 CPUs > 18 context-switches # 0.002 M/sec > 1 CPU-migrations # 0.000 M/sec > 315 page-faults # 0.035 M/sec > <not counted> cycles > <not counted> instructions > <not counted> cache-references > <not counted> cache-misses > > 0.020167093 seconds time elapsed > > Woot!
Something is very seriously hosed on that box... clock?
Can you turn it back on, and do.. while sleep .1; do cat /proc/sched_debug >> foo; done ..on one core, and (quickly;) xmodmap .xmodmap-carl, then send me a few seconds worth (gzipped up) to eyeball?
-Mike
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