Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761043AbXINMR1 (ORCPT ); Fri, 14 Sep 2007 08:17:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754900AbXINMRT (ORCPT ); Fri, 14 Sep 2007 08:17:19 -0400 Received: from viefep18-int.chello.at ([213.46.255.22]:52973 "EHLO viefep11-int.chello.at" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753127AbXINMRS (ORCPT ); Fri, 14 Sep 2007 08:17:18 -0400 Subject: Re: [announce] CFS-devel, performance improvements From: Peter Zijlstra To: Roman Zippel Cc: Ingo Molnar , linux-kernel@vger.kernel.org, Mike Galbraith In-Reply-To: References: <20070911200459.GA6974@elte.hu> <20070913075258.GA9173@elte.hu> <20070913142842.GA26016@elte.hu> <1189703165.21778.258.camel@twins> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-cEr0g5hhZYsZtWF9rWLy" Date: Fri, 14 Sep 2007 14:17:15 +0200 Message-Id: <1189772235.21778.287.camel@twins> Mime-Version: 1.0 X-Mailer: Evolution 2.10.1 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1273 Lines: 42 --=-cEr0g5hhZYsZtWF9rWLy Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Fri, 2007-09-14 at 14:04 +0200, Roman Zippel wrote: > AFAICT the compensation part is already done by the scaling part, without= =20 > the load part it largely mirrors what __update_stats_wait_end() does, i.e= .=20 > it gets the same time as other tasks, which have been on the rq. All it tried to do was approximate the situation where the task never left the rq. I'm not saying it makes sense or is the right thing to do, just what the thought behind that particular bit was. There is a reason it was turned off by default: - SCHED_FEAT_SLEEPER_AVG *0 | --=-cEr0g5hhZYsZtWF9rWLy Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQBG6nvLXA2jU0ANEf4RAjoeAJ9TPlcpgHAGz2/1wcgU8Gjz7Ph5DwCeN3xx AXs+6bq2eKAnGPnIvKj4C80= =pW+w -----END PGP SIGNATURE----- --=-cEr0g5hhZYsZtWF9rWLy-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/