Messages in this thread | | | Date | Mon, 7 Sep 2009 16:14:58 +0200 | From | Ingo Molnar <> | Subject | Re: BFS vs. mainline scheduler benchmarks and measurements |
| |
* Jens Axboe <jens.axboe@oracle.com> wrote:
> On Mon, Sep 07 2009, Jens Axboe wrote: > > Scheduler Runtime Max lat Avg lat Std dev > > ---------------------------------------------------------------- > > CFS 100 951 462 267 > > CFS-x2 100 983 484 308 > > BFS > > BFS-x2 > > Those numbers are buggy, btw, it's not nearly as bad. But > responsiveness under compile load IS bad though, the test app just > didn't quantify it correctly. I'll see if I can get it working > properly.
What's the default latency target on your box:
cat /proc/sys/kernel/sched_latency_ns
?
And yes, it would be wonderful to get a test-app from you that would express the kind of pain you are seeing during compile jobs.
Ingo
| |