Messages in this thread | | | Date | Tue, 21 Feb 2012 13:39:54 +0530 | From | Srivatsa Vaddagiri <> | Subject | Re: sched: Avoid SMT siblings in select_idle_sibling() if possible |
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* Mike Galbraith <efault@gmx.de> [2012-02-21 07:37:14]:
> On Tue, 2012-02-21 at 05:36 +0530, Srivatsa Vaddagiri wrote: > > > fwiw the patch I had sent does a wakeup balance within prev_cpu's > > cache_domain (and not outside). > > Yeah, the testing I did was turn on the flag, and measure. With single > domain scans, maybe select_idle_sibling() could just go away.
Yeah that's what I was thinking. Essentially find_idlest_group/cpu should accomplish that job pretty much for us ...
> It ain't free either.
Will find out how much difference it makes ..
- vatsa
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