From mboxrd@z Thu Jan 1 00:00:00 1970 From: Edward Shishkin Subject: Re: fsck.reiser4 query Date: Sun, 03 Jul 2011 23:02:02 +0200 Message-ID: <4E10D8CA.4090005@gmail.com> References: <99758203da18f9de8e42eadebeadc4a8@mail.velocitynet.com.au> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; bh=E0gfmva4d4qzGtG5nsMsMBFalvA66GZzmBf+afxPwsA=; b=U6gIJzZ03iznL8tQq9YwxI4hW7mGhq/cLfuvi8RjFlOqiaQDs5oOI/0dpURmO8JKg/ goRQLM/AwRQKfAixMpJtBfS+oO54b0ohxMwNcdgEr8c8qtD5ENdeeVdaNLAzkn5kjdlc 5bPRHlv9WUhJ7r4Wu4BXFWjnLOcJNOiv5YvGA= In-Reply-To: <99758203da18f9de8e42eadebeadc4a8@mail.velocitynet.com.au> Sender: reiserfs-devel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: doiggl@velocitynet.com.au Cc: reiserfs-devel@vger.kernel.org On 06/28/2011 04:31 AM, doiggl@velocitynet.com.au wrote: > Hello, > I have some questions. > > 1. Is there any possibility of speeding up the command proocess # > fsck.reiser4 --build-fs /dev/xxx Yes, such possibility does exist. Fsck can work faster if you have many subvolumes per superblock (currently reiser4 supports only one subvolume per superblock). > Could the metadata be loaded into ram and processed their or is the > process entirly disk bound by I/O ? This is both, CPU and I/O bound. The first one can be improved if we make fsck process all subvolumes in parallel. The second one can be improved if we map subvolumes to different physical (scsi) drives. > 2. Also will there a reiser4-for-2.6.39.patch in the future ? I hope so.. Thanks, Edward.