Date: Mon, 20 Sep 2004 13:51:59 -0700 From: Julian Elischer <julian@elischer.org> To: Sascha Holzleiter <sascha@daemonground.de> Cc: current@freebsd.org Subject: Re: RELENG_5 nfs performance Message-ID: <414F42EF.1000902@elischer.org> In-Reply-To: <1095681918.79469.11.camel@area51.cc-web.ma.schlund.de> References: <1095681918.79469.11.camel@area51.cc-web.ma.schlund.de>
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Make sure that the NIC is configured manually with th eright speed. e.g. ifconfig vr0 media 100BaseT mediaopt full-duplex automatic selection often produces problems like this.. Sascha Holzleiter wrote: >Hi, > >I just installed a new system with 5.2.1 which shall serve as a NFS >server. While testing the performance of the system was VERY slow. > >I could read from the server with about 500KB/s and write to it with >3,5MB/s on a 100MBit link. > >copying from the server: > vr0 in 9.138 KB/s 26.394 KB/s 304.019 MB > out 505.639 KB/s 505.639 KB/s 1.236 GB > >copying to the server: > vr0 in 3.219 MB/s 3.219 MB/s 377.028 MB > out 79.540 KB/s 79.540 KB/s 1.248 GB > >I then upgraded to 5.3-BETA4 which gives me the same results. > >Is there anything I'm missing here? The system is Athlon UP system with >a via-rhine network card. I tried to set various sysctls e.g. >vm.old_msync=1 and debug.mpsafenet=0 which did not help. > >One strange thing was that after some reboots I got once a rate of 9MB/s >but after the next reboot this was gone :) > >Using FTP for data transport the rate is around 10Mb/s which is quite >normal so this seems to be no NIC issue. > > > >
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