From: Harald Hannelius Subject: Re: Poor NFS performance, kernel 2.6.6. Date: Thu, 27 May 2004 15:17:43 +0300 (EEST) Sender: nfs-admin@lists.sourceforge.net Message-ID: References: <200405271251.22746.vincent.roqueta@ext.bull.net> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=ISO-8859-1 Return-path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.12] helo=sc8-sf-mx2.sourceforge.net) by sc8-sf-list2.sourceforge.net with esmtp (Exim 4.30) id 1BTJpR-0000dI-BU for nfs@lists.sourceforge.net; Thu, 27 May 2004 05:17:45 -0700 Received: from penti.sit.fi ([193.167.33.237]) by sc8-sf-mx2.sourceforge.net with esmtp (Exim 4.30) id 1BTJpQ-0008VX-Ih for nfs@lists.sourceforge.net; Thu, 27 May 2004 05:17:44 -0700 Received: from penti.sit.fi (harald@localhost [127.0.0.1]) by penti.sit.fi (8.12.10/8.12.10) with ESMTP id i4RCHhgT011157 for ; Thu, 27 May 2004 15:17:43 +0300 Received: from localhost (harald@localhost) by penti.sit.fi (8.12.10/8.12.9/Submit) with ESMTP id i4RCHhYr011154 for ; Thu, 27 May 2004 15:17:43 +0300 To: nfs@lists.sourceforge.net In-Reply-To: <200405271251.22746.vincent.roqueta@ext.bull.net> Errors-To: nfs-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: Discussion of NFS under Linux development, interoperability, and testing. List-Post: List-Help: List-Subscribe: , List-Archive: On Thu, 27 May 2004, Vincent ROQUETA wrote: > Le Jeudi 27 Mai 2004 12:31, Harald Hannelius a =E9crit : > > Is there some way I can look at the nfs-server what it's doing? Any > > suggestions on solutions for this? > > > > And what datarates over NFS could I expect on a setup like this? > > Half-wirespeed maybe? > on NFSv3, 1 ethernet 1GB I reached 89% of the avalaible brandwith for NF= Sv3, > kernel 2.6.3, for file less than the total amount of ram (4Go), and 22% o= f > the brandwith for file over 6Go, because of the use of harddisk use in th= e > copy process (swap). > > What is your memory configuration? I took a look at "top" while reading the file on the client; It looks like it's sitting there waiting for io. Something for the kernel-people maybe? 15:15:10 up 1 day, 19:31, 4 users, load average: 7.55, 4.31, 3.54 93 processes: 92 sleeping, 1 running, 0 zombie, 0 stopped CPU0 states: 0.0% user 1.2% system 0.0% nice 95.1% iowait 3.0% idle CPU1 states: 0.0% user 1.2% system 0.0% nice 90.1% iowait 8.1% idle Mem: 1035184k av, 1029660k used, 5524k free, 0k shrd, 18216k buff 52712k active, 929460k inactive Swap: 987956k av, 0k used, 987956k free 957788k cached PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND 4473 root 16 0 4008 1084 3832 R 0.3 0.1 0:00 1 top 8 root 5 -10 0 0 0 SW< 0.1 0.0 0:15 0 kblockd/0 9 root 5 -10 0 0 0 SW< 0.1 0.0 0:14 1 kblockd/1 4382 root 15 0 0 0 0 SW 0.1 0.0 0:01 0 nfsd 4384 root 15 0 0 0 0 SW 0.1 0.0 0:01 0 nfsd 4386 root 15 0 0 0 0 DW 0.1 0.0 0:01 1 nfsd 4387 root 15 0 0 0 0 SW 0.1 0.0 0:01 0 nfsd 4392 root 15 0 0 0 0 DW 0.1 0.0 0:01 0 nfsd 4394 root 15 0 0 0 0 DW 0.1 0.0 0:00 1 nfsd 4395 root 15 0 0 0 0 SW 0.1 0.0 0:00 1 nfsd 4396 root 15 0 0 0 0 DW 0.1 0.0 0:01 0 nfsd 1 root 16 0 488 240 464 S 0.0 0.0 0:05 1 init --=20 A: Top Posters Q: What is the most annoying thing on mailing lists? Harald H Hannelius | harald/a\arcada.fi | GSM +358 50 594 1020 ------------------------------------------------------- This SF.Net email is sponsored by: Oracle 10g Get certified on the hottest thing ever to hit the market... Oracle 10g. Take an Oracle 10g class now, and we'll give you the exam FREE. http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs