Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752467Ab1BFDQP (ORCPT ); Sat, 5 Feb 2011 22:16:15 -0500 Received: from mo-65-41-216-221.sta.embarqhsd.net ([65.41.216.221]:50905 "EHLO greer.hardwarefreak.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752378Ab1BFDQO (ORCPT ); Sat, 5 Feb 2011 22:16:14 -0500 Message-ID: <4D4E127D.3060105@hardwarefreak.com> Date: Sat, 05 Feb 2011 21:16:13 -0600 From: Stan Hoeppner User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: Justin Piszcz CC: "Dr. David Alan Gilbert" , Emmanuel Florac , linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, linux-net@vger.kernel.org, Alan Piszcz Subject: Re: Supermicro X8DTH-6: Only ~250MiB/s from RAID<->RAID over 10GbE? References: <20110205214550.3cb0f0d1@galadriel2.home> <20110205220621.GB17347@gallifrey> <4D4DE34E.7010308@hardwarefreak.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 996 Lines: 22 Justin Piszcz put forth on 2/5/2011 7:08 PM: > Overall performance is good, but now I need to figure out how to tweak the > network and/or disk paths so I can achieve > 1Gbyte/sec, as the RAID-0s can > read and write > 1.2Gbyte/sec. > > Has anyone with 10GbE <-> 10GbE been able to transfer at or near line rate > with a single connection, or > 700MiB/s with multiple connections? Problem > I worry about with creating multiple connections between two machines it will > create contention within the RAID that is being read from.. Are you trying to maximize this for the sake of maximizing it, or do you have an actual application or work flow process that needs to be able to transfer a single large file via NFS at >1 GB/s throughput? -- Stan -- 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/