From: "Talpey, Thomas" Subject: Re: [PATCH 0/1] SUNRPC: Add sysctl variables for server TCP snd/rcv buffer values Date: Wed, 11 Jun 2008 17:01:09 -0400 Message-ID: References: <484ECDE4.6030108@gmail.com> <7F44A14A-F811-4D41-BAFF-E019E9904B6A@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: Dean Hildebrand , linux-nfs@vger.kernel.org To: Chuck Lever Return-path: Received: from mx2.netapp.com ([216.240.18.37]:37672 "EHLO mx2.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751523AbYFKVBc (ORCPT ); Wed, 11 Jun 2008 17:01:32 -0400 In-Reply-To: <7F44A14A-F811-4D41-BAFF-E019E9904B6A@oracle.com> References: <484ECDE4.6030108@gmail.com> <7F44A14A-F811-4D41-BAFF-E019E9904B6A@oracle.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: At 03:48 PM 6/11/2008, Chuck Lever wrote: >There are also fairly unsophisticated ways to add longer delays on >your test network, and turning up the latency knob would be a useful >test. IPFW can be used to limit effective bandwidth and insert latencies in strange, wonderful and easy-to-configure ways. I think there's preconfigured profile for an earth-moon link, for instance. Using a pair of virtual client/ server instances on a single machine would be a great way to prototype this (no wire bottlenecks - pure simulation), too. Just an idea! Tom.