From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030502AbXDQOrb (ORCPT ); Tue, 17 Apr 2007 10:47:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030503AbXDQOrb (ORCPT ); Tue, 17 Apr 2007 10:47:31 -0400 Received: from ns2.uludag.org.tr ([193.140.100.220]:57825 "EHLO uludag.org.tr" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1030502AbXDQOra (ORCPT ); Tue, 17 Apr 2007 10:47:30 -0400 From: "=?utf-8?q?S=2E=C3=87a=C4=9Flar?= Onur" Reply-To: caglar@pardus.org.tr Organization: =?utf-8?q?T=C3=9CB=C4=B0TAK_/?= UEKAE To: Ingo Molnar Subject: Re: [patch] CFS (Completely Fair Scheduler), v2 Date: Tue, 17 Apr 2007 17:45:19 +0300 User-Agent: KMail/1.9.6 Cc: linux-kernel@vger.kernel.org, Linus Torvalds , Andrew Morton , Con Kolivas , Nick Piggin , Mike Galbraith , Arjan van de Ven , Peter Williams , Thomas Gleixner , Willy Tarreau , Gene Heskett , Dmitry Adamushko References: <20070416220715.GA4071@elte.hu> <200704170112.35819.caglar@pardus.org.tr> <20070417085936.GB16645@elte.hu> In-Reply-To: <20070417085936.GB16645@elte.hu> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart7797411.ZGXQWlPFLj"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200704171745.22544.caglar@pardus.org.tr> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --nextPart7797411.ZGXQWlPFLj Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline 17 Nis 2007 Sal tarihinde, Ingo Molnar =C5=9Funlar=C4=B1 yazm=C4=B1=C5=9Ft= =C4=B1:=20 > > Sorry for delayed response but i just find some free time, do you > > still want me to test mainline + "parent-runs first" patch or will i > > drop that one and test v2 which can change default behaviour? > > i suspect for now it would be sufficient if you could check the v2 > patch. > > if it _works_, please try this: > > echo 0 > /proc/sys/kernel/sched_child_runs_first > > this should break Kaffeine again :) > > (if it doesnt work then the Kaffeine problem is unrelated to > child-runs-first.) OK, i tested both plain -rc7 and -rc7 + CFSv2 with while=20 sched_child_runs_first enabled/disabled. I'm always using same video file and try to reproduce freeze with constantl= y=20 pressing forward/backward buttons. With CFS 2-3 forward/backward attempt=20 reproduces this behaviour.=20 And here are the results. Mainline still has no issues with both xine-lib/kaffeine and xine-ui=20 (kaffeine-0.8.4, xine-lib-1.1.5 [both xcb enabled], xine-ui-0.99.4). I real= ly=20 try hard to reproduce the freeze, but i can't... And CFSv2 still fails for both child_runs_first and parent_runs_first cases= =20 with same strace output (FUTEX_WAIT). If you want me to test something else just ask please :)=20 Cheers =2D-=20 S.=C3=87a=C4=9Flar Onur http://cekirdek.pardus.org.tr/~caglar/ Linux is like living in a teepee. No Windows, no Gates and an Apache in hou= se! --nextPart7797411.ZGXQWlPFLj Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.3 (GNU/Linux) iD8DBQBGJN2Cy7E6i0LKo6YRArrMAKDT6+4Ke7h3mDFA5JsqR0FdmfreLwCgnzoP 5bWHFM2cPPkcN4R8w5O6Whg= =NnwD -----END PGP SIGNATURE----- --nextPart7797411.ZGXQWlPFLj--