From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f65.google.com ([209.85.220.65]:34954 "EHLO mail-pa0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752795AbcHDCMt (ORCPT ); Wed, 3 Aug 2016 22:12:49 -0400 Received: by mail-pa0-f65.google.com with SMTP id cf3so15199987pad.2 for ; Wed, 03 Aug 2016 19:12:49 -0700 (PDT) Date: Thu, 4 Aug 2016 11:12:52 +0900 From: Sergey Senozhatsky To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , Josef Bacik , Mike Galbraith , Sergey Senozhatsky , Sergey Senozhatsky Subject: [-stable 4.1] sched/fair: Beef up wake_wide() Message-ID: <20160804021252.GA516@swordfish> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: stable-owner@vger.kernel.org List-ID: Hello, I've tracked down a performance regression on 4.1 to select_task_rq_fair() CPU affinity heuristics, and the patch in question addressed it: commit 63b0e9edceec10fa41ec33393a1515a5ff444277 Author: Mike Galbraith sched/fair: Beef up wake_wide() -ss