Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765650AbYBOKJe (ORCPT ); Fri, 15 Feb 2008 05:09:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751702AbYBOKJZ (ORCPT ); Fri, 15 Feb 2008 05:09:25 -0500 Received: from minas.ics.muni.cz ([147.251.4.40]:60009 "EHLO minas.ics.muni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752473AbYBOKJY (ORCPT ); Fri, 15 Feb 2008 05:09:24 -0500 Date: Fri, 15 Feb 2008 11:09:21 +0100 From: Lukas Hejtmanek To: Tejun Heo Cc: linux-kernel@vger.kernel.org Subject: Re: Disk schedulers Message-ID: <20080215100921.GB5347@ics.muni.cz> References: <20080214162104.GA5347@ics.muni.cz> <47B4D697.3030106@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <47B4D697.3030106@gmail.com> X-echelon: NSA, CIA, CI5, MI5, FBI, KGB, BIS, Plutonium, Bin Laden, bomb User-Agent: Mutt/1.5.17+20080114 (2008-01-14) X-Muni-Spam-TestIP: 147.251.54.96 X-Muni-Envelope-From: xhejtman@anubis.fi.muni.cz X-Muni-Virus-Test: Clean X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-3.0 (minas.ics.muni.cz [147.251.4.35]); Fri, 15 Feb 2008 11:09:21 +0100 (CET) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 900 Lines: 22 On Fri, Feb 15, 2008 at 09:02:31AM +0900, Tejun Heo wrote: > > till the scp finishes. It is not caused by low free memory, while scping > > I have 500MB of free memory (not cached or buffered). > > > > I tried cfq and anticipatory scheduler, none is different. > > > > Does deadline help? well, deadline is a little bit better. I'm trying to read from disk opening maildir with 20000 mails with mutt. If I open that maildir, mutt shows progress. With cfq or anticipatory scheduler, progress is 0/20000 until scp finishes. With deadline, progress is 150/20000 after scp finished. So I would say, it is better but I doubt it is OK. -- Luk?? Hejtm?nek -- 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/