Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030387AbXBZSIH (ORCPT ); Mon, 26 Feb 2007 13:08:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030391AbXBZSIH (ORCPT ); Mon, 26 Feb 2007 13:08:07 -0500 Received: from ug-out-1314.google.com ([66.249.92.174]:5151 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030387AbXBZSIE (ORCPT ); Mon, 26 Feb 2007 13:08:04 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=LkaaRy0an4QCy6yW7szxyQFLBnh4HbNzf7ZyPH0euLOLsc3FDlUCfsfws59EU826nzwmcCMPM06ib7ShFT/4Rnc1BgG4v3QS3HxupF45gp40vrIt02rx/ZV1+Shai5F3K4vPKck4xcAq9zuCc1FVREjZZnamBrGdO2DnurSfvFI= Message-ID: Date: Mon, 26 Feb 2007 19:07:54 +0100 From: "Mark Stier" To: "Frank Ch. Eigler" Subject: Re: latencies due to disk writes Cc: linux-kernel@vger.kernel.org In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20070226015439.97500@gmx.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 499 Lines: 11 > > I'm experiencing extreme lags during disk writes. [...] > > Wacky idea: "ionice -n 7 -c 2" down the pdflush/swapd kernel threads. As I already wrote in my post, no disk IO scheduler cares for disk writes. So even CFQ is only a disk *IN* scheduler... - 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/