Hello all, I am getting quite sick of my self and NFS. I´ve read many posts at forums.gentoo.org, I´ve googled, I´ve tested and tested and tested... No help could be found.
The problem is not unique as it seems. I have an r/w speed against the NFS-server going from ~200kb/sec to 2mb/sec. I can´t predict or find a cause for the strange speed changes. I have three computers set up: Aquarius is my main work station (AMD XP 3200+, 1 gig ram) Leo is my file server (AMD 1700+, 630 meg ram) Aries is for TV-out (AMD 1700+, 512 meg ram) All connected via a switched 100mbit network. All have 100mbit NICs. Netperf is telling me this: aquarius hermes # netperf -H leo TCP STREAM TEST to leo Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 10.00 89.61 And when I do the same from/to all others the results are quite the same. So, no problem with the network. Next up NFS. I have now tried so many different combinations at my /etc/fstab that I don´t know what is up and down: It currently looks like this: aquarius hermes # cat /etc/fstab | grep nfs leo:/home/files /home/hermes/philez nfs rw,users,auto,hard,intr,tcp,retrans=5,rsize=1024,wsize=1024 I´ve tried rsize and wsize from 1024 up to 32768 (1 through 32 * 1024). I´ve tried it in combination with sync and async. Here I find async working best. The file server (Leo) has a 120 gig HD with DMA enabled: leo linux # hdparm -t /dev/hdc /dev/hdc: Timing buffered disk reads: 88 MB in 3.02 seconds = 29.15 MB/sec So there should not be a I/O related problem either. I also run Samba on it, and when I am in Windows, filetransfers are as expected on 100mbit network (haven´t even mesured them as they work fine). Can anyone please give me any hints or advices on how to proceed with this problem? Best regards, Andreas Karlsson
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