Re: [git] CFS-devel, latest code

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Sep 25, 2007 at 10:33:27AM +0200, Mike Galbraith wrote:
> > Darn, have news: latency thing isn't dead.  Two busy loops, one at nice
> > 0 pinned to CPU0, and one at nice 19 pinned to CPU1 produced the
> > latencies below for nice -5 Xorg.  Didn't kill the box though.
> > 
> > se.wait_max              :            10.068169
> > se.wait_max              :             7.465334
> > se.wait_max              :           135.501816
> > se.wait_max              :             0.884483
> > se.wait_max              :           144.218955
> > se.wait_max              :           128.578376
> > se.wait_max              :            93.975768
> > se.wait_max              :             4.965965
> > se.wait_max              :           113.655533
> > se.wait_max              :             4.301075
> > 
> > sched_debug (attached) is.. strange.

Mike,
	Do you have FAIR_USER_SCHED turned on as well? Can you send me
your .config pls?

Also how do you check se.wait_max?

> Disabling CONFIG_FAIR_GROUP_SCHED fixed both.  Latencies of up to 336ms
> hit me during the recompile (make -j3), with nothing else running.
> Since reboot, latencies are, so far, very very nice.  I'm leaving it
> disabled for now.

-- 
Regards,
vatsa
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux