From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265290AbUF1XMY (ORCPT ); Mon, 28 Jun 2004 19:12:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265288AbUF1XMY (ORCPT ); Mon, 28 Jun 2004 19:12:24 -0400 Received: from bhhdoa.org.au ([216.17.101.199]:33286 "EHLO bhhdoa.org.au") by vger.kernel.org with ESMTP id S265290AbUF1XL7 (ORCPT ); Mon, 28 Jun 2004 19:11:59 -0400 Message-ID: <1088455953.40e08511b746b@vds.kolivas.org> Date: Tue, 29 Jun 2004 06:52:33 +1000 From: kernel@kolivas.org To: Pavel Machek Cc: Felipe Alfaro Solana , Linux Kernel Mailinglist Subject: Re: 2.6.7-ck1 References: <200406162122.51430.kernel@kolivas.org> <1087576093.2057.1.camel@teapot.felipe-alfaro.com> <20040628224623.GA11333@elf.ucw.cz> In-Reply-To: <20040628224623.GA11333@elf.ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT User-Agent: Internet Messaging Program (IMP) 3.2.2 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Quoting Pavel Machek : > Hi! > > > > Patchset update. The focus of this patchset is on system responsiveness > with > > > emphasis on desktops, but the scope of scheduler changes now makes this > patch > > > suitable to servers as well. > > > > I've found some interaction problems between, what I think it's, the > > staircase scheduler and swsusp. With vanilla 2.6.7, swsusp is able to > > save ~9000 pages to disk in less than 5 seconds, where as 2.6.7-ck1 > > takes more than 1 minute to save the same amount of pages when > > suspending to disk. > > That's probably bug in io subsystem. That happened few times in suse > kernel. Missing unplug? Thanks. Turned out to be a buggy yield() implementation on my part. Fixed in later -ck versions. Cheers, Con