Re: Task group cleanups and optimizations (was: Re: [RFC 00/60] Coscheduling for Linux)

From: Peter Zijlstra
Date: Tue Sep 18 2018 - 09:42:28 EST


On Tue, Sep 18, 2018 at 03:22:13PM +0200, Jan H. Schönherr wrote:
> to always restrict tasks in a task group to just one core/node/whatever. On an
> SMT system, you would typically need at most two runqueues for a core; the memory

You forget that SMT4 and SMT8 are fairly common outside of x86.