From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S271742AbTGRKSI (ORCPT ); Fri, 18 Jul 2003 06:18:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S271738AbTGRKQx (ORCPT ); Fri, 18 Jul 2003 06:16:53 -0400 Received: from mx02.qsc.de ([213.148.130.14]:59100 "EHLO mx02.qsc.de") by vger.kernel.org with ESMTP id S271736AbTGRKQT (ORCPT ); Fri, 18 Jul 2003 06:16:19 -0400 Date: Fri, 18 Jul 2003 12:31:05 +0200 From: Wiktor Wodecki To: Mike Galbraith Cc: Nick Piggin , Davide Libenzi , Con Kolivas , linux kernel mailing list , Andrew Morton , Felipe Alfaro Solana , Zwane Mwaikambo Subject: Re: [PATCH] O6int for interactivity Message-ID: <20030718103105.GE622@gmx.de> Reply-To: Wiktor Wodecki References: <5.2.1.1.2.20030718071656.01af84d0@pop.gmx.net> <200307170030.25934.kernel@kolivas.org> <200307170030.25934.kernel@kolivas.org> <5.2.1.1.2.20030718071656.01af84d0@pop.gmx.net> <5.2.1.1.2.20030718120229.01a8fcf0@pop.gmx.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="1SQmhf2mF2YjsYvc" Content-Disposition: inline In-Reply-To: <5.2.1.1.2.20030718120229.01a8fcf0@pop.gmx.net> X-message-flag: Linux - choice of the GNU generation X-Operating-System: Linux 2.6.0-test1-mm1-O6 i686 X-PGP-KeyID: 182C9783 X-Info: X-PGP-KeyID, send an email with the subject 'public key request' to wodecki@gmx.de User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --1SQmhf2mF2YjsYvc Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jul 18, 2003 at 12:18:33PM +0200, Mike Galbraith wrote: > That _might_ (add salt) be priorities of kernel threads dropping too low. >=20 > I'm also seeing occasional total stalls under heavy I/O in the order of= =20 > 10-12 seconds (even the disk stops). I have no idea if that's something = in=20 > mm or the scheduler changes though, as I've yet to do any isolation and/o= r=20 > tinkering. All I know at this point is that I haven't seen it in stock y= et. I've seen this too while doing a huge nfs transfer from a 2.6 machine to a 2.4 machine (sparc32). Thought it'd be something with the nfs changes which were recently, might be the scheduler, tho. Ah, and it is fully reproducable. --=20 Regards, Wiktor Wodecki --1SQmhf2mF2YjsYvc Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQE/F8xp6SNaNRgsl4MRAjOFAJ9BuVukrdpgXWfazUFh2QjDwYWYNACeLXGd WF+BECb7xge7gFtf720BN3Y= =tcYj -----END PGP SIGNATURE----- --1SQmhf2mF2YjsYvc--