NFS Locking Issue

[User Freebsd]

On Wed, 5 Jul 2006, Michel Talon wrote:

>> 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.

What are others using for ethernet?  In your case, you say you are running 
between fxp cards ... I've heard some report, in another thread, problems 
with the bge driver ... could we be possibly talking internet vs nfs 
issues?

----
Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
Email . scrappy at hub.org                              MSN . scrappy at hub.org
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