[Samba] Small file performance

Volker Lendecke vl at samba.org
Tue Jan 10 05:41:49 UTC 2017

On Tue, Jan 10, 2017 at 08:24:35AM +1100, John Gardeniers via samba wrote:
> Hi Volker,
> Thanks for the response. The clients are Win 7, Win 10 and various flavours
> of Linux, with Samba client versions ranging from 3.6 to 4.5.3. There is no
> perceptible difference between any of them.
> Network latency is never above 0.2s and mostly sits at around 0.1s. If
> that's a problem it is so only for Samba.

How does Windows server side perform?

> I did as you suggested with the smb options but that just made it worse.
> Using the same test environment and file set, the final speed dropped from
> average of around 3.5MB/s to an average of about 3.0MB/s over a series if
> test runs. Again, the OS, and therefore the client version, made no
> difference. I guess I won't be using those settings in production.

What is your Unix? Is that some AIX or Solaris flavor?

Ok. Can you strace the server side smbd with

strace -ttT -o /tmp/smbd.strace -f -p <smbd-pid> ?


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