On Wed, 2007-09-19 at 09:51 +0200, Mike Galbraith wrote:
> The scenario which was previously cured was this:
> taskset -c 1 nice -n 0 ./massive_intr 2 9999
> taskset -c 1 nice -n 5 ./massive_intr 2 9999
> click link
> (http://pages.cs.wisc.edu/~shubu/talks/cachescrub-prdc2004.ppt) to bring
> up browser and OpenOffice Impress.
>
> Xorg (at nice -5 + above scenario) latency samples:
> se.wait_max : 57985337
> se.wait_max : 25163510
> se.wait_max : 37005538
> se.wait_max : 66986511
> se.wait_max : 53990868
> se.wait_max : 80976761
> se.wait_max : 96967501
> se.wait_max : 80989254
> se.wait_max : 53990897
> se.wait_max : 181963905
> se.wait_max : 85985181
To be doubly sure of the effect on the pinned tasks + migrating Xorg
scenario, I just ran the above test 10 times with virgin devel source.
Maximum Xorg latency was 20ms.
-Mike
-
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/
