Messages in this thread | | | Date | Thu, 8 Jun 2017 21:59:00 +0200 | From | Peter Zijlstra <> | Subject | Re: [RFC PATCH] sched: select_idle_core should select least utilized core |
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On Thu, Jun 08, 2017 at 03:26:32PM -0400, Subhra Mazumdar wrote: > Current select_idle_core tries to find a fully idle core and if it fails > select_idle_cpu next returns any idle cpu in the llc domain. This is not optimal > for architectures with many (more than 2) hyperthreads in a core. This patch > changes select_idle_core to find the core with least number of busy > hyperthreads and return an idle cpu in that core.
Yeah, I think not. That makes select_idle_siblings _vastly_ more expensive.
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