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DateSat, 17 Apr 2004 22:01:41 -0700
FromMarc Singer <>
SubjectRe: NFS and kernel 2.6.x
On Sat, Apr 17, 2004 at 05:57:46PM -0700, Trond Myklebust wrote:
> On Sat, 2004-04-17 at 15:22, Marc Singer wrote:
> > I have a data point for comparison.
> > 
> > I'm copying a 40MiB file over NFS.  In five trials, the mean transfer
> > times are
> > 
> >   UDP (v2):  48.5s
> >   TCP (v3):  52.7s
> 
> Against what kind of server on what kind of network, with what kind of
> mount options?
> The above would be quite reasonable performance on a 10Mbit network
> against a filer or a Linux server with the (insecure) "async" option
> set.

Client is a 200MHz ARM; server is a Linux host running 2.6.3 with the
kernel nfs daemon; network is 100Mib.  There is nothing else on the
network except intermittent broadband traffic.  Async is set on the
server side.

While I have seen much worse performance in the last couple of weeks,
I cannot blame NFS when I look at the numbers.

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