Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754130AbZAKDOA (ORCPT ); Sat, 10 Jan 2009 22:14:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750842AbZAKDNw (ORCPT ); Sat, 10 Jan 2009 22:13:52 -0500 Received: from THUNK.ORG ([69.25.196.29]:59262 "EHLO thunker.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750740AbZAKDNv (ORCPT ); Sat, 10 Jan 2009 22:13:51 -0500 Date: Sat, 10 Jan 2009 22:13:37 -0500 From: Theodore Tso To: =?iso-8859-1?Q?J=F6rn?= Engel Cc: Andi Kleen , Johannes Berg , KOSAKI Motohiro , Andrew Morton , Linux Kernel list Subject: Re: [PATCH] add b+tree library Message-ID: <20090111031337.GI31579@mit.edu> Mail-Followup-To: Theodore Tso , =?iso-8859-1?Q?J=F6rn?= Engel , Andi Kleen , Johannes Berg , KOSAKI Motohiro , Andrew Morton , Linux Kernel list References: <1231584446.3685.21.camel@johannes> <2f11576a0901100302s5132a1b9p11c62e27aa9a06f8@mail.gmail.com> <1231587428.3803.0.camel@johannes> <2f11576a0901100429h415d3a87o40ba4849120832c8@mail.gmail.com> <20090110183921.GD20611@logfs.org> <1231613042.3706.16.camel@johannes> <87fxjrgd9s.fsf@basil.nowhere.org> <20090110202315.GE20611@logfs.org> <20090110212740.GE31579@mit.edu> <20090110220135.GF20611@logfs.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20090110220135.GF20611@logfs.org> User-Agent: Mutt/1.5.17+20080114 (2008-01-14) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: tytso@mit.edu X-SA-Exim-Scanned: No (on thunker.thunk.org); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 675 Lines: 16 On Sat, Jan 10, 2009 at 11:01:35PM +0100, J?rn Engel wrote: > > I don't really expect a big difference, even if the filesystem is > intended for flash, not disks. Other overhead will dominate the > picture. The situation may be different for Johannes, though. If there isn't a big difference, is it really worth it to have both rbtrees and b-trees in the kernel? Especially given the disadvantages akpm noted.... - Ted -- 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/