[Samba] Speed differences for windows clients

Ricky Nance ricky.nance at gmail.com
Tue Aug 13 06:07:00 MDT 2013


If you have a socket options line in your config, comment it out and
restart smbd and see if that helps.
On Aug 13, 2013 4:17 AM, "Philipp Lies" <philipp.lies at cin.uni-tuebingen.de>
wrote:

> Am 8/13/2013 10:50 AM, schrieb L.P.H. van Belle:
> > Try the following.
> > Since Win7 does traffic shaping.
> >
> > in adminstrative dos box.
> > run
> > netsh interface tcp set global autotuning=disabled
> >
> > ( the original setting is : netsh interface tcp set global
> autotuningl=normal  )
> > and test again.
> Thanks, this boosted the speed ~5MB/s for both connections but the
> difference between server 1 and server 2 is still at ~10-15 MB/s. It's
> nothing critical, I'm just curious what could cause this.
>
> Cheers
>
> Philipp
>
> >
> >
> > Gr.
> >
> > Louis
> >
> >
> >> -----Oorspronkelijk bericht-----
> >> Van: jra at samba.org [mailto:samba-bounces at lists.samba.org]
> >> Namens Jeremy Allison
> >> Verzonden: dinsdag 13 augustus 2013 2:18
> >> Aan: Philipp Lies
> >> CC: samba at lists.samba.org
> >> Onderwerp: Re: [Samba] Speed differences for windows clients
> >>
> >> On Mon, Aug 12, 2013 at 10:00:18AM +0200, Philipp Lies wrote:
> >>> Hi,
> >>>
> >>> we have a strange phenomenon with the transfer speed between windows
> >>> clients and samba servers. Here's the setup:
> >>>
> >>> server 1: centos 6.3 with samba 3.5.10
> >>> server 2: centos 6.4 with samba 3.6.9
> >>> both servers are configured as BDC and have - aside from netbios
> >>> name - identical smb.conf which contains ldapsam as backend and all
> >>> other parameters are not set (i.e. default)
> >>>
> >>> When I mount a share from a linux client, the transfer speed is
> >>> ~112MB/sec to either server from any linux client. However, when I
> >>> mount a share from Windows clients, the speed to server 1 is ~95MB/s
> >>> and to server 2 ~85MB/s. We tested this with several windows clients
> >>> (all running Windows 7 with all updates).
> >>>
> >>> The speed difference between linux client and windows client is not
> >>> what's confusing me but that server 2 is always slower than server
> >>> 1.
> >>>
> >>> Any ideas what could cause this?
> >>
> >> Nope. Need more data :-).
> >>
> >> Jeremy.
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> >>
> >
>
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