Messages in this thread | | | Date | Wed, 15 Jan 2014 08:35:33 +0100 | From | Peter Zijlstra <> | Subject | Re: [RFC PATCH] sched: find the latest idle cpu |
| |
On Wed, Jan 15, 2014 at 12:07:59PM +0800, Alex Shi wrote: > Currently we just try to find least load cpu. If some cpus idled, > we just pick the first cpu in cpu mask. > > In fact we can get the interrupted idle cpu or the latest idled cpu, > then we may get the benefit from both latency and power. > The selected cpu maybe not the best, since other cpu may be interrupted > during our selecting. But be captious costs too much.
No, we should not do anything like this without first integrating cpuidle.
At which point we have a sane view of the idle states and can make a sane choice between them.
| |