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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!lucy.swin.edu.au!news.rmit.EDU.AU!goanna.cs.rmit.edu.au!news.apana.org.au!cantor.edge.net.au!news.teragen.com.au!news.access.net.au!news.mel.connect.com.au!munnari.OZ.AU!news.ecn.uoknor.edu!feed1.news.erols.com!howland.erols.net!news.mathworks.com!newsgate.duke.edu!news-relay.ncren.net!news-server.ncren.net!news From: Sam Moore <sam@mcnc.org> Newsgroups: comp.unix.bsd.bsdi.misc Subject: NFS reads are slower when using nfsiod process at 100 Mbps Date: Tue, 04 Mar 1997 15:58:39 -0500 Organization: MCNC - Corporate Information Systems Lines: 30 Message-ID: <331C8CFF.5EA6@mcnc.org> NNTP-Posting-Host: cis-dev.mcnc.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 3.0Gold (X11; I; SunOS 5.5 sun4m) Xref: euryale.cc.adfa.oz.au comp.unix.bsd.bsdi.misc:6192 I am looking for a way to tune my BSDI box to get the best performance when running at 100 Mbps. I have found that the NFS read transfer rate is much, much slower at 100 Mbps with nfsiod running that it is without. I have a very fast NFS server that appears to be overrunning the BSDI box. Using netstat I can see that the "dropped due to full socket buffers" UDP counter is steadily increasing during the transfers. If I kill the nfsiod processes and continue running at 100 Mbps I get much better NFS read rates. If I drop the speed back to 10 Mbps I can get much better rates than I get with 100 Mbps(and nfsiod). Any ideas on how I can tune BSDI to get the best performance at 100 Mbps. NFS reading will be the bulk of my application. If you can respond via email. Thanks. -- ..Sam Moore............................................................... ..sam@mcnc.org....................MCNC - Corporate Information Systems.... ..(919) 248-1842..................Research Triangle Park, NC..............