Messages in this thread | | | Subject | Re: sched: Avoid SMT siblings in select_idle_sibling() if possible | From | Mike Galbraith <> | Date | Tue, 21 Feb 2012 06:43:18 +0100 |
| |
On Mon, 2012-02-20 at 20:07 +0100, Peter Zijlstra wrote: > On Mon, 2012-02-20 at 19:14 +0100, Mike Galbraith wrote: > > Enabling SD_BALANCE_WAKE used to be decidedly too expensive to consider. > > Maybe that has changed, but I doubt it. > > Right, I through I remembered some such, you could see it on wakeup > heavy things like pipe-bench and that java msg passing thing, right?
Yeah, it beat up switch heavy buddies pretty bad.
-Mike
| |