Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756573Ab1E0Qyp (ORCPT ); Fri, 27 May 2011 12:54:45 -0400 Received: from fn.samba.org ([216.83.154.106]:56759 "EHLO lists.samba.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754725Ab1E0Qyo (ORCPT ); Fri, 27 May 2011 12:54:44 -0400 X-Greylist: delayed 459 seconds by postgrey-1.27 at vger.kernel.org; Fri, 27 May 2011 12:54:44 EDT Date: Fri, 27 May 2011 09:47:02 -0700 From: Jeremy Allison To: Steve French Cc: linux-cifs@vger.kernel.org, linux-fsdevel , LKML Subject: Re: Big performance improvements seen with cifs async write patches even over localhost Message-ID: <20110527164702.GB28520@samba2> Reply-To: Jeremy Allison References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1022 Lines: 26 On Fri, May 27, 2011 at 12:14:19AM -0500, Steve French wrote: > Did some informal testing of Jeff Layton's cifs async_write patch set > tonight (recent kernel). Copying 700MB sequentially was 20% faster > from cifs kernel client to Samba 3.6 with his patches - even mounted > over localhost (where network latency is a much smaller issue) and > with a slow laptop drive! > > I was simply doing > > time dd if=/dev/zero of=/mnt/null bs=1M count=700 > > repeated 4 times each way (with old module, and with same code with > Jeff's cifs async write code builtin), deleting the target file in > between each run. > > I am looking forward to trying this over GigE tomorrow to servers with > faster disks. Very nice ! Now where's my encrypted transport Steve ? :-) :-) Jeremy. -- 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/