Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 16 Jul 2002 17:36:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 16 Jul 2002 17:36:14 -0400 Received: from p508875D5.dip.t-dialin.net ([80.136.117.213]:58259 "EHLO hawkeye.luckynet.adm") by vger.kernel.org with ESMTP id ; Tue, 16 Jul 2002 17:36:10 -0400 Date: Tue, 16 Jul 2002 15:38:50 -0600 (MDT) From: Thunder from the hill X-X-Sender: thunder@hawkeye.luckynet.adm To: Andreas Dilger cc: linux-kernel@vger.kernel.org Subject: Re: [ANNOUNCE] Ext3 vs Reiserfs benchmarks In-Reply-To: <20020716212322.GT442@clusterfs.com> Message-ID: X-Location: Calgary; CA MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1144 Lines: 33 Hi, On Tue, 16 Jul 2002, Andreas Dilger wrote: > This is all done already for both LVM and EVMS snapshots. The filesystem > (ext3, reiserfs, XFS, JFS) flushes the outstanding operations and is > frozen, the snapshot is created, and the filesystem becomes active again. > It takes a second or less. Anyway, we could do that in parallel if we did it like that: sync -> significant data is being written lock -> data writes stay cached, but aren't written snapshot unlock -> data is getting written now unmount the snapshout (clean it) write the modified snapshot to disk... Regards, Thunder -- (Use http://www.ebb.org/ungeek if you can't decode) ------BEGIN GEEK CODE BLOCK------ Version: 3.12 GCS/E/G/S/AT d- s++:-- a? C++$ ULAVHI++++$ P++$ L++++(+++++)$ E W-$ N--- o? K? w-- O- M V$ PS+ PE- Y- PGP+ t+ 5+ X+ R- !tv b++ DI? !D G e++++ h* r--- y- ------END GEEK CODE BLOCK------ - 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/