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Newsgroups: comp.os.386bsd.bugs Path: sserve!newshost.anu.edu.au!munnari.oz.au!constellation!osuunx.ucc.okstate.edu!moe.ksu.ksu.edu!ux1.cso.uiuc.edu!newsrelay.iastate.edu!news.iastate.edu!ponderous.cc.iastate.edu!michaelv From: michaelv@iastate.edu (Michael L. VanLoon) Subject: Re: nfsd-udp very cpu hungry... Message-ID: <michaelv.742180897@ponderous.cc.iastate.edu> Sender: news@news.iastate.edu (USENET News System) Organization: Iowa State University, Ames IA References: <21gnsn$26s@sun.rhbnc.ac.uk> <1993Jul8.104735.16179@cnplss5.cnps.philips.nl> <1993Jul8.193524.1443@intellistor.com> Date: Fri, 9 Jul 1993 01:21:37 GMT Lines: 41 In <1993Jul8.193524.1443@intellistor.com> cwolff@intellistor.com (Clint Wolff) writes: >>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 I've had no problems with various incarnations of 386bsd, and currently, NetBSD 0.8, mounting remote DEC Ultrix partitions with the default values (8k). I'm using a WD8013EBT ether card. Your mileage, and data, may vary... -- ------------------------------------------------------------------------------ Michael L. VanLoon Project Vincent Systems Staff michaelv@iastate.edu Iowa State University Computation Center ------------------------------------------------------------------------------