[Samba] samba 4.x slow ...

[Dr. Peer-Joachim Koch]

Hi,


we are running samba 4.4 on two machines as file servers.

Both are running a GFS (stornext). The storage is attached using 8G HBA.

You can get up to 800MB/s local speed. We are exporting the shares using 
2x1GB

and 2x10G. However the clients are only getting 40-50MB/s. With samba3 I 
think we had up to 80-90MB/s.

Using a 100MB/s link for the client we see 12-13MB/s (wire speed).

Using NFS (3) we see up to 120MB/s (GB). How can we improve the speed ?

How can we find the bottle neck ? (I tested already various samba 
versions (4.4{5,6}) without

any success.


-- 
Bye,
     Peer
________________________________________________________

Max-Planck-Institut für Biogeochemie
Dr. Peer-Joachim Koch
Hans-Knöll Str.10            Telefon: ++49 3641 57-6705
D-07745 Jena                 Telefax: ++49 3641 57-7705