Messages in this thread | | | Date | Fri, 20 Feb 2015 11:52:41 +0000 | From | Morten Rasmussen <> | Subject | Re: [PATCH RESEND v9 00/10] sched: consolidation of CPU capacity and usage |
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On Fri, Feb 20, 2015 at 11:34:47AM +0000, Peter Zijlstra wrote: > On Thu, Feb 19, 2015 at 12:49:40PM +0000, Morten Rasmussen wrote: > > > Also, it still not clear why patch 10 uses relative capacity reduction > > instead of absolute capacity available to CFS tasks. > > As present in your asymmetric big and small systems? Yes it would be > unfortunate to migrate a task to an idle small core when the big core is > still faster, even if reduced by rt/irq work.
Yes, exactly. I don't think it would cause any harm for symmetric cases to use absolute capacity instead. Am I missing something?
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