Messages in this thread | | | Date | Sun, 27 Jan 2008 23:14:22 +0100 | From | Ingo Molnar <> | Subject | Re: "sched: add vslice" causes horrible interactivity under load |
| |
* Benjamin K. Stuhl <benjamin.stuhl@colorado.edu> wrote:
> I recently upgraded from 2.6.23.x to 2.6.24 and found that whereas > with 2.6.23.x I could have multiple "make -j3" compilation runs going > in the background with no real problems (on a dual-core Core 2), with > 2.6.24 I get multiple-second lags when trying to switch tasks in KDE.
that sounds bad ... Could you send me the output of:
http://people.redhat.com/mingo/cfs-scheduler/tools/cfs-debug-info.sh
while such delays are happening? Please enable CONFIG_SCHED_DEBUG=y and CONFIG_SCHEDSTATS=y as well before doing the dump. Also please send your .config.
to get best output from cfs-debug-info.sh, please first run this:
http://people.redhat.com/mingo/cfs-scheduler/tools/cfs-debug-info-clear.sh
then reproduce the delay, and then run cfs-debug-info.sh to capture all that task stats.
Ingo
| |