nfs client speed lower than expected.
vince at unsane.co.uk
Thu Nov 3 10:07:31 UTC 2011
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-60.2 sec 6.22 GBytes 887 Mbits/sec
transfers in via ssh are nice and nifty too.
On 02/11/2011 23:55, Gary Gatten wrote:
> Is the interface really at 1Gb? Have you tested with iperf, ftp, or anything other than nfs?
> -----Original Message-----
> From: owner-freebsd-questions at freebsd.org [mailto:owner-freebsd-questions at freebsd.org] On Behalf Of Vincent Hoffman
> Sent: Wednesday, November 02, 2011 6:52 PM
> To: FreeBSD-Questions at freebsd.org
> Subject: nfs client speed lower than expected.
> Hi all,
> What kind of speed should I be expecting over an NFS mount from
> a linux box using a gig interface (igb)? I'm seeing linux clients
> getting approx 2 or 3 times the throughput rsyncing files from a linux
> nfs server that i get from a 8-stable FreeBSD client.
> representative results
> 7.26MB/s - Freebsd client
> 21.10MB/s liunx client
> I've tried a variety of files to try and take caching out of the
> equation, I've tweaked a few sysctls after much googling
> with no obvious improvement.
> freebsd mount options
> linux mount options
> I have seen that using the linux server as an nfs client to write to the
> NFS server on the freebsd box gives similar performance to a linux
> client pulling from the linux server so I'm guessing its something to do
> with the freebsd nfs client?
> Any suggestions/clues welcome.
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