Date: Wed, 5 Jul 2006 15:33:29 +0200 From: Michel Talon <talon@lpthe.jussieu.fr> To: freebsd-stable@freebsd.org Subject: Re: NFS Locking Issue Message-ID: <20060705133329.GA65123@lpthe.jussieu.fr>
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> So it may be relevant to say that i have kernels without IPV6 support.
> Recall that i have absolutely no problem with the client in FreeBSD-6.1.
> Tomorrow i will test one of the 6.1 machines as a NFS server and the other as
> a client, and will make you know if i see something.
Well, i have checked between 2 FreeBSD-6.1-RELEASE machines on the network,
both have fxp ethernet driver running at 100 Mb/s, one is NFS server other NFS
client. Both run lockd and statd. I have absolutely no problem exchanging
files, for example if i begin to copy /usr/src through NFS from one machine to
the other, which makes a lot of transactions of all sorts, i get:
niobe# mount asmodee:/usr/src /mnt
cp -R /mnt/src .
...
after some time i interrupt the transfer
niobe% du -sh .
131M .
and during this time i observe the following type of statistics
asmodee% netstat -w 1 -I fxp0
input (fxp0) output
packets errs bytes packets errs bytes colls
542 0 84116 1330 0 1219388 0
515 0 72806 1290 0 1196330 0
501 0 95722 1081 0 741048 0
539 0 90704 1090 0 1228052 0
645 0 67888 902 0 1451098 0
405 0 81264 1609 0 604278 0
503 0 74218 709 0 924422 0
500 0 98904 973 0 619350 0
550 0 100122 855 0 836328 0
615 0 79336 1081 0 862772 0
577 0 82862 901 0 1005024 0
which looks decent to me.
Doing the same with just one big file no problem either, and i get a transfer
speed of 6.60 MB/s which is perhaps a little less than with linux, but nothing
catastrophic. I get 8.20 MB/s for FreeBSD client interacting with the Linux
server.
Now netstat gives
packets errs bytes packets errs bytes colls
785 0 123266 4716 0 6825600 0
759 0 139898 4530 0 7747276 0
852 0 124652 5106 0 6902566 0
863 0 128040 5170 0 7081738 0
811 0 123760 4862 0 6851498 0
789 0 123540 4720 0 6834310 0
840 0 115378 5024 0 6382114 0
So up to what i can see NFS works OK for me on FreeBSD-6.1.
So the main difference with other people cases may be that i have removed IPV6
support from kernel.
--
Michel TALON
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