Return-Path: Received: from mx2.netapp.com ([216.240.18.37]:64172 "EHLO mx2.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752741Ab1DGO26 (ORCPT ); Thu, 7 Apr 2011 10:28:58 -0400 Message-ID: <4D9DCA19.6060008@netapp.com> Date: Thu, 07 Apr 2011 10:28:41 -0400 From: Bryan Schumaker To: NeilBrown CC: "J. Bruce Fields" , Trond Myklebust , Chuck Lever , Linux NFS Mailing List Subject: Re: Use of READDIRPLUS on large directories References: <20110316155528.31913c58@notabene.brown> <24085EE6-EF0B-4F36-8F6A-100AB863F408@oracle.com> <4D80C5C6.2060003@netapp.com> <1300285203.16266.46.camel@lade.trondhjem.org> <20110317083034.479ecb5f@notabene.brown> <1300311755.30551.17.camel@lade.trondhjem.org> <20110317094019.23f31f53@notabene.brown> <20110317171831.GA30180@fieldses.org> <4D9A26B8.6080504@netapp.com> <20110405222019.6c4d2997@notabene.brown> In-Reply-To: <20110405222019.6c4d2997@notabene.brown> Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 On 04/05/2011 08:20 AM, NeilBrown wrote: > On Mon, 04 Apr 2011 16:14:48 -0400 Bryan Schumaker > wrote: > >> I've done some more testing and posted my initial results here: https://wiki.linux-nfs.org/wiki/index.php/Readdir_performance_results. If anybody has suggestions for better ways to organize the data, please let me know. I'll also try to post some graphs in the next couple of days. > > I think graphs would certainly help. > Also it might be good to be explicit about the server hardware/config as that > can make a real performance difference. I've aded this to the readdir performance page. Is there anything else I should put up about the server? > No bright ideas about how to organise the graphs... > I'd probably try just graphing the 'real' time against kernel version > with one line for each different directory size. > > Then you get 16 graphs, 4 different configs (v3/v4 x rddirplus/norddirplus) > and 4 different tests (ls -f, ls -lU, ls -U, rm -r... though I can't see how > "ls -U" is different from "ls -f"). I've added graphs showing real time. I'll be putting up graphs showing sys time and total number of RPC calls throughout the day. > NeilBrown > -- > To unsubscribe from this list: send the line "unsubscribe linux-nfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html