Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752780Ab1E0FOV (ORCPT ); Fri, 27 May 2011 01:14:21 -0400 Received: from mail-pv0-f174.google.com ([74.125.83.174]:37811 "EHLO mail-pv0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750804Ab1E0FOU (ORCPT ); Fri, 27 May 2011 01:14:20 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=qoD6djCe0XQcJ2WBopRKQDnX2Ma4N5azRIJw2rGDjVHk85tsEHZ/6ke4oCcBlMDOlO 9UY0mup+rs7CkxW+FddGsMm16IkfodzLbs/z/ODs71k16u8pecGWubM1guW4U/uJBy2m eYFq9hHR3eFJp4kzH+0EzSLz1O4fzk4c33UH0= MIME-Version: 1.0 Date: Fri, 27 May 2011 00:14:19 -0500 Message-ID: Subject: Big performance improvements seen with cifs async write patches even over localhost From: Steve French To: linux-cifs@vger.kernel.org, linux-fsdevel , LKML Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 877 Lines: 28 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. -- Thanks, Steve -- 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/