SCHED_ULE should not be the default
adrian at freebsd.org
Tue Dec 13 10:22:49 UTC 2011
On 13 December 2011 01:00, Andrey Chernov <ache at freebsd.org> wrote:
>> If the algorithm ULE does not contain problems - it means the problem
>> has Core2Duo, or in a piece of code that uses the ULE scheduler.
> I observe ULE interactivity slowness even on single core machine (Pentium
> 4) in very visible places, like 'ps ax' output stucks in the middle by ~1
> second. When I switch back to SHED_4BSD, all slowness is gone.
Are you able to provide KTR traces of the scheduler results? Something
that can be fed to schedgraph?
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