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.
