From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753359Ab2GTRFG (ORCPT ); Fri, 20 Jul 2012 13:05:06 -0400 Received: from casper.infradead.org ([85.118.1.10]:35232 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753196Ab2GTRFF convert rfc822-to-8bit (ORCPT ); Fri, 20 Jul 2012 13:05:05 -0400 Message-ID: <1342803898.2583.32.camel@twins> Subject: Re: [ 11/37] sched/nohz: Rewrite and fix load-avg computation -- again From: Peter Zijlstra To: Jonathan Nieder Cc: Greg Kroah-Hartman , linux-kernel@vger.kernel.org, stable@vger.kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Ingo Molnar Date: Fri, 20 Jul 2012 19:04:58 +0200 In-Reply-To: <20120718001607.GJ25325@burratino> References: <20120717232455.GA5994@kroah.com> <20120717232431.399005532@linuxfoundation.org> <20120717232432.250519502@linuxfoundation.org> <20120718001607.GJ25325@burratino> Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT X-Mailer: Evolution 3.2.2- Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2012-07-17 at 19:16 -0500, Jonathan Nieder wrote: > I'm thrilled to see this regression fix for stable@, but are we really > really sure that it won't cause new regressions? Doug Smythies ran a ~68 hour test on it, running various synthetic loads of various frequencies against it and comparing the reported load averages against the expected values and found it to be 'good'. This doesn't guarantee we won't find more 'interesting' problems in there, but it does give me fair confidence in it.