nfs client speed lower than expected.
vince at unsane.co.uk
Thu Nov 3 10:24:46 UTC 2011
I'll give it a try when i get a moment, These servers are all on gigabit
LAN (sadly 1500 mtu until I can get the network guy to schedule an
outage to reboot the switches and enable jumbo frames,) same subnet so i
would expect UDP to have similar or better performance.
On 02/11/2011 23:53, Michael Sierchio wrote:
> Mount via tcp.
> On Wed, Nov 2, 2011 at 4:51 PM, Vincent Hoffman <vince at unsane.co.uk> wrote:
>> 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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