kern.sched.quantum: Creepy, sadistic scheduler
julian at freebsd.org
Sat Apr 7 04:30:49 UTC 2018
On 4/4/18 9:32 pm, George Mitchell wrote:
> On 04/04/18 06:39, Alban Hertroys wrote:
>> That said, SCHED_ULE (the default scheduler for quite a while now) was designed with multi-CPU configurations in mind and there are claims that SCHED_4BSD works better for single-CPU configurations. You may give that a try, if you're not already on SCHED_4BSD.
> A small, disgruntled community of FreeBSD users who have never seen
> proof that SCHED_ULE is better than SCHED_4BSD in any environment
> continue to regularly recompile with SCHED_4BSD. I dread the day when
> that becomes impossible, but at least it isn't here yet. -- George
for a single CPU you really should compile a kernel with SMP turned
off and 4BSD scheduler.
ULE is just trying too hard to do stuff you don't need.
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