From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752415AbcBAJ3r (ORCPT ); Mon, 1 Feb 2016 04:29:47 -0500 Received: from casper.infradead.org ([85.118.1.10]:33415 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751416AbcBAJ3p (ORCPT ); Mon, 1 Feb 2016 04:29:45 -0500 Date: Mon, 1 Feb 2016 10:29:43 +0100 From: Peter Zijlstra To: riel@redhat.com Cc: linux-kernel@vger.kernel.org, fweisbec@gmail.com, tglx@linutronix.de, mingo@kernel.org, luto@amacapital.net, clark@redhat.com Subject: Re: [PATCH 4/4] sched,time: only call account_{user,sys,guest,idle}_time once a jiffy Message-ID: <20160201092943.GN6357@twins.programming.kicks-ass.net> References: <1454292751-23472-1-git-send-email-riel@redhat.com> <1454292751-23472-5-git-send-email-riel@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1454292751-23472-5-git-send-email-riel@redhat.com> User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Jan 31, 2016 at 09:12:31PM -0500, riel@redhat.com wrote: > Run times for the microbenchmark: > > 4.4 3.8 seconds > 4.5-rc1 3.7 seconds > 4.5-rc1 + first patch 3.3 seconds > 4.5-rc1 + first 3 patches 3.1 seconds > 4.5-rc1 + all patches 2.3 seconds Would be good to compare that also to a !NOHZ_FULL bloated path.