Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 12 Feb 2002 20:29:05 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 12 Feb 2002 20:28:55 -0500 Received: from holomorphy.com ([216.36.33.161]:59044 "EHLO holomorphy") by vger.kernel.org with ESMTP id ; Tue, 12 Feb 2002 20:28:37 -0500 Date: Tue, 12 Feb 2002 17:28:09 -0800 From: William Lee Irwin III To: Andrew Morton Cc: Alan Cox , lkml Subject: Re: [patch] get_request starvation fix Message-ID: <20020213012809.GI767@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Andrew Morton , Alan Cox , lkml In-Reply-To: <3C69A196.B7325DC2@zip.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Description: brief message Content-Disposition: inline In-Reply-To: <3C69A196.B7325DC2@zip.com.au> User-Agent: Mutt/1.3.25i Organization: The Domain of Holomorphy Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Feb 12, 2002 at 03:13:26PM -0800, Andrew Morton wrote: > Second version of this patch, incorporating Suparna's > suggested simplification (the low-water mark was > unnecessary). > > This patch is working well here. Hopefully it'll pop up > in an rmap kernel soon. > > Bill Irwin has been doing some fairly extensive tuning > and testing of this. Hopefully he'll come out with some > numbers soon. Much of my testing has involved varying elevator and bdflush parameters to find what works best with this. From preliminary results it is clear that the resolution of the fairness issues in this patch and the read latency patch does not impair performance. I'll do a bunch more runs tonight with the latest version of this. My prior runs were with an earlier version. Cheers, Bill - 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/