[nfs-rdma-devel] [ofa-general] Status of NFS-RDMA ? (fwd)

[Pawel Dziekonski]

On Wed, 05 Mar 2008 at 11:13:14PM -0500, Talpey, Thomas wrote:
> At 08:20 AM 3/3/2008, Pawel Dziekonski wrote:
> >both nfs server and client have Mellanox MT25204 HCAs. tests were
> >done by connecting them port to port (without switch) with DDR
> >cable.  reported link was 20Gbps.
> 
> What kernel base is your client running also? (uname -a) There are
> some known issues with cached write throughput over NFS above 1Gb,
> that we may be able to work around but it's kernel-dependent.
> 
> >currently I have a Flextronix switch that reports itself as
> >"MT47396 Infiniscale-III Mellanox Technologies".
> 
> Looking at your results from earlier this month, it's not at all
> clear that the nfs/rdma run was actually using nfs/rdma. The speeds
> and cpu loads were very similar to the ethernet results.
> 
> Can we take this offline and look into it more? All on the client,
> I'll be interested in the exact mount command you ran, the output of
> "cat /proc/mounts", the contents of dmesg/kernel logs after a run,
> and the output of "nfsstat".

Hi,

thanks for answering.

I can not provide any details now. I will repeat whole setup and
benchmarks ASAP.
Pawel
-- 
Pawel Dziekonski <pawel.dziekonski at wcss.pl>
Wroclaw Centre for Networking & Supercomputing, HPC Department
Politechnika Wr., pl. Grunwaldzki 9, bud. D2/101, 50-377 Wroclaw, POLAND
phone: +48 71 3202043, fax: +48 71 3225797, http://www.wcss.wroc.pl