From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id pA3AJAO7259820 for ; Thu, 3 Nov 2011 05:19:10 -0500 Date: Thu, 3 Nov 2011 06:19:08 -0400 From: Christoph Hellwig Subject: Re: [PATCH 0/8] xfsdump: enable support for multiple streams Message-ID: <20111103101908.GA8572@infradead.org> References: <1320268254-20583-1-git-send-email-wkendall@sgi.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1320268254-20583-1-git-send-email-wkendall@sgi.com> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Bill Kendall Cc: xfs@oss.sgi.com On Wed, Nov 02, 2011 at 04:10:46PM -0500, Bill Kendall wrote: > This series resurrects the IRIX multi-stream support for splitting a > backup among several output files/tapes. This offers some nice > performance improvements, particularly in xfsrestore where a single > stream often cannot keep the filesystem/disks busy. I've observed > a 1.7x improvement on a backup and a 5x improvement on restore. > > I have a couple of xfstests for this, and will submit those once > a few outstanding xfsdump test patches have been reviewed. I've put both your two previous xfsdump patches and the all your xfstests changes into the kernel.org repositories. They all look fine to me. Btw, one thing I'd love to see is a script that uses the userspace iscsi target (tgt) infrastructure to emulate a tape, and thus allow to run the tape tests in any VM without requiring a real tape device. Maybe there is someone on the list feels challenged by this? _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs