Messages in this thread | | | Subject | Re: BFS vs. mainline scheduler benchmarks and measurements | From | Mike Galbraith <> | Date | Thu, 10 Sep 2009 13:21:10 +0200 |
| |
On Thu, 2009-09-10 at 13:09 +0200, Jens Axboe wrote: > On Thu, Sep 10 2009, Mike Galbraith wrote: > > 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? > > model name : Genuine Intel(R) CPU T2400 @ 1.83GHz > > Throttles down to 1.00GHz when idle. > > > Can you turn it back on, and do.. > > I guess you mean turn NEW_FAIR_SLEEPERS back on, correct? > > > 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? > > Attached.
xmodmap doesn't seem to be running in this sample.
-Mike
| |