From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932973AbcI1Thl (ORCPT ); Wed, 28 Sep 2016 15:37:41 -0400 Received: from mail-wm0-f54.google.com ([74.125.82.54]:37227 "EHLO mail-wm0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932392AbcI1The (ORCPT ); Wed, 28 Sep 2016 15:37:34 -0400 Date: Wed, 28 Sep 2016 20:37:31 +0100 From: Matt Fleming To: Peter Zijlstra Cc: Ingo Molnar , linux-kernel@vger.kernel.org, Mike Galbraith , Yuyang Du , Vincent Guittot , Dietmar Eggemann Subject: Re: [PATCH] sched/fair: Do not decay new task load on first enqueue Message-ID: <20160928193731.GD16071@codeblueprint.co.uk> References: <20160923115808.2330-1-matt@codeblueprint.co.uk> <20160928101422.GR5016@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160928101422.GR5016@twins.programming.kicks-ass.net> User-Agent: Mutt/1.5.24+41 (02bc14ed1569) (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 28 Sep, at 12:14:22PM, Peter Zijlstra wrote: > > Which suggests we do something like the below (not compile tested or > anything, also I ran out of tea again). I'm away on FTO right now. I can test this when I return on Friday. Funnily enough, I now remember that I already sent a fix for the missing update_rq_clock() in post_init_entity_util_avg(), but didn't apply it when chasing this hackbench regression (oops), https://lkml.kernel.org/r/20160921133813.31976-3-matt@codeblueprint.co.uk