From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932302Ab2C1Qox (ORCPT ); Wed, 28 Mar 2012 12:44:53 -0400 Received: from mailout-de.gmx.net ([213.165.64.23]:41943 "HELO mailout-de.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1757985Ab2C1Qor (ORCPT ); Wed, 28 Mar 2012 12:44:47 -0400 X-Authenticated: #14349625 X-Provags-ID: V01U2FsdGVkX1+JWJAnC3WJtCdVz1E2I9ba4c84kjRXoyQPlA2tWX XW8OsbeZDm8tjV Message-ID: <1332953083.7309.147.camel@marge.simpson.net> Subject: Re: [ANNOUNCE] BFS CPU scheduler version 0.420 AKA "Smoking" for linux kernel 3.3.0 From: Mike Galbraith To: Nikos Chantziaras Cc: linux-kernel@vger.kernel.org Date: Wed, 28 Mar 2012 18:44:43 +0200 In-Reply-To: References: <201203240553.32526.gene.heskett@gmail.com> <57375.1332641134@turing-police.cc.vt.edu> <20120328051243.GA2138@fancy-poultry.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.1 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2012-03-28 at 15:39 +0300, Nikos Chantziaras wrote: > On 28/03/12 08:12, Heinz Diehl wrote: > > On 25.03.2012, Valdis.Kletnieks@vt.edu wrote: > > > >> I'va always wondered what people are using to measure interactivity. Do we have > >> some hard numbers from scheduler traces, or is it a "feels faster"? > > > > I guess it's a "feels faster", because it's the only thing that > > counts. Given that there is strong evidence that scheduler A is > > "faster, more interactive", whatever... than scheduler B, but a > > controlled trial shows a significantly better "feels faster" > > experience using scheduler B, I'm quite shure that people would choose > > scheduler B over A, and that's quite ok. It does what they expect it > > to do, despite evidence which documents the opposite. > > CFS: ALSA XRUNs in JACK. > BFS: much less ALSA XRUNs in JACK Something like that could be interesting to look into. Do you have a setup and recipe for inducing these xruns I can try? I don't have any audio problems of my own to fiddle with, but then the few apps I use buffer a lot, so I wouldn't. -Mike