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Newsgroups: comp.os.386bsd.bugs Path: sserve!newshost.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!elroy.jpl.nasa.gov!sdd.hp.com!col.hp.com!csn!csn!arrayb!cwolff From: cwolff@intellistor.com (Clint Wolff) Subject: Re: nfsd-udp very cpu hungry... Message-ID: <1993Jul8.193524.1443@intellistor.com> Organization: Intellistor, Longmont, CO References: <21gnsn$26s@sun.rhbnc.ac.uk> <1993Jul8.104735.16179@cnplss5.cnps.philips.nl> Date: Thu, 8 Jul 93 19:35:24 GMT Lines: 38 >simon@dcs.rhbnc.ac.uk (Simon Richardson) writes: > > >>I am having a spot of bother setting up 386bsd on a network. I have the >>0.2.2 patchkit installed. I have a 486/DX2 at 33 (66?) Mhz which I am >>trying to use on ethernet as a server, with an nfs card configured as ne0. > >>When my other (386Dx 40Mhz) machine tries to use NFS off this machine, the >>nfs-udp daemon becomes very cpu hungry. ps -aux (eventually) reports 556% >>cpu usage. Obviously this degrades performance a tad. (5 mins to log on, or >>worse). > >>I can FTP large files from one machine to another, and telnet from one >>machine to another. Ping reports no problems, so I assume it is just NFS. > >>Is there a patch? Is anyone working on this? Or have I done something >>silly? Do you have your remote machine (client) set up with rsize=1024 and wsize=1024 in the /etc/fstab? I noticed performance was abysmal with the default values (8k I think)... I suspect it is because the network card can't buffer up enough packets to put together a full 8k block without losing data... Otherwise??? You might check the network, and see how much it is being used, and collisions and such... A lot of retries would burn CPU time pretty bad... clint -- +-----------------------------------------------------------------------------+ | Clint Wolff Blonde and proud of it | | Fujitsu Computer Products of America - Intellistor Research and Development | | cwolff@slowboy.intellistor.com Ex-hacker... Now System Admininstrator | +-----------------------------------------------------------------------------+ | SAVE BANDWIDTH... EMAIL YOUR RESPONSES TO THE PERSON WHO ASKED... | | DON'T POST ME-TO MESSAGES... EMAIL THE ORIGINAL POSTER FOR A SUMMARY | +-----------------------------------------------------------------------------+