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Re: [Samba] samba 4.x slow ...




Setup:  Server 2x10GB NIC, client 1x1GB:

Using smbclient with -mSMB3 I get an average of 52000 KiloBytes/sec (before 45000),

using NFS (v3) from the same server I get  108000 KiloBytes/sec an more (mount ; cp; umount; ...)

Bye, Peer


On 03.11.2017 17:01, Jeremy Allison wrote:
On Fri, Nov 03, 2017 at 01:54:10PM +0100, Dr. Peer-Joachim Koch via samba wrote:
Hi Micha,

no, I have to this. I'm normally just check what smbstatus shows:

33837   BGC\pkoch    users        XXX (ipv4:XXX:51118)    SMB2_10

Bye the way - 45 MB/s is not so bad, I just wanted to know if it's
possible to get 90MB/s or at 10G a little bit more.
What has been messaured  ?

I used on a new HPC node (10G) smbclient to test the transfer speed
and get (10G<->10G) 199MB (mtu 1500).

33692     pkoch         users         10.0.3.100
(ipv4:10.0.3.100:54821) NT1

Using smbclient (using NT1) we see the following values:

Cl             Server (using get)
10GB <-> 10GB      199MB/s
10GB <-> 2x1GB    162MB/s  (??? )
   1GB <-> 2x1GB     60MB/s


Cl             Server (using put)
10GB <-> 2x1GB    ~100MB/s
   1GB <-> 2x1GB        50MB/s
Try using SMB3 (smbclient -mSMB3). See if that makes a difference.


--
Mit freundlichen Grüßen,
    Peer-Joachim Koch
________________________________________________________

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

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