From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758384AbYD2HhW (ORCPT ); Tue, 29 Apr 2008 03:37:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751526AbYD2HhI (ORCPT ); Tue, 29 Apr 2008 03:37:08 -0400 Received: from brick.kernel.dk ([87.55.233.238]:6080 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750976AbYD2HhH (ORCPT ); Tue, 29 Apr 2008 03:37:07 -0400 Date: Tue, 29 Apr 2008 09:37:04 +0200 From: Jens Axboe To: "Alan D. Brunelle" Cc: linux-kernel@vger.kernel.org Subject: Re: [RFC][PATCH 0/3] Skip I/O merges when disabled Message-ID: <20080429073704.GB12774@kernel.dk> References: <480F8936.5030406@hp.com> <20080424070923.GQ12774@kernel.dk> <48107891.5000308@hp.com> <20080425083809.GG12774@kernel.dk> <4811BDBB.8010604@hp.com> <4811CBBC.4000206@hp.com> <4815FCF9.5060109@hp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4815FCF9.5060109@hp.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Apr 28 2008, Alan D. Brunelle wrote: > Jens - > > Would you consider taking in a patch set that had the tunable + enabled > one-hit cache tries only? I don't see where the back-merge attempts add > anything in a truly random case. > Yep, I'm fine with that. Back merging wont help on truly random of course, but it may make the switch more appealing to half-random cases as well. But lets just go with a switch that turns off all search merging and only keeps the one-hit cache. -- Jens Axboe