[Samba] Strangely slow tranfers speeds with samba 3.0.10 and FC3...

This is a discussion on [Samba] Strangely slow tranfers speeds with samba 3.0.10 and FC3... within the Samba forums, part of the Networking and Network Related category; Ok, I've found some references to this issue with samba on the net, but = not related to the version ...


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Old 05-04-2005
peter
 
Posts: n/a
Default [Samba] Strangely slow tranfers speeds with samba 3.0.10 and FC3...

Ok, I've found some references to this issue with samba on the net, but =
not
related to the version of samba I'm running (which is 3.0.10, updated
version that comes with Fedora Core 3).

My problem is this, I've got a Compaq Proliant 2500 (dual Pentium =
Pro-200MHz
with 256MB RAM and the standard Netintelligent 10/100 network controller
that come with it)... I've narrowed down that hardware isn't a problem
because I can get a comfortable 9 MB/s transfer rate from this machine =
using
FTP.

My problem is Samba, more specifically reading a file from a samba =
share. I
can read a 350 MB file at a horrendously slow speed of 0.85MB/s, it =
takes
more than 10 minutes for the file to be transferred, when I use a =
Windows XP
or Windows 2000. If I use Windows 98 it takes just over 2 minutes.

Now, the strange thing is that if I log into my samba server, mount a =
volume
from my Windows (2k/XP) PC with smbmount and copy the file to the mount
point, it takes just over 2 minutes. If I write to the samba server =
(copy a
files from the windows (98/2k/XP) PC to the samba server) it takes just =
over
2 minutes. In these situations the transfer rate is about 5MB/s.

So the problem is specifically Windows 2000 or XP reading from the Samba
server. I've seen a reference to a problem similar to this but the =
person
was using samba 2.2, incidentally I have an old Samba 2.2 (RH7.2) on the
network (which I was hoping to replace) that does not suffer this =
problem, I
can't compare the rates as the hardware is much inferior (a =
Pentium-133MHz
with 32MB RAM) but the read and write speeds are similar and it takes =
just
over 3 minutes to read a 350MB file with Windows 2k/XP clients, so it's =
a
lot faster than the Proliant 2500!

I've tried disabling oplocks, switching NetBIOS off (using just TCP/IP),
doubling the send and receive buffers, etc... all to no avail!

Any help would be most appreciated.

Thanks in advance,

Peter.

PS: The detail of my setup (anything else you need please ask)...

Dist: Fedora Core 3
Kernel: 2.6.11
Samba: 3.0.10-1.fc3 (latest Fedora Security Release)

Output of testparm:

Load smb config files from /etc/samba/smb.conf
Processing section "[printers]"
Processing section "[shared]"
Loaded services file OK.
Server role: ROLE_STANDALONE
Press enter to see a dump of your service definitions

# Global parameters
[global]
workgroup =3D REDE-CASA
server string =3D Novo servidor Proliant 2500 - PPro Dual
interfaces =3D 192.168.1.6/24, 127.0.0.1/8
bind interfaces only =3D Yes
security =3D SHARE
log file =3D /var/log/samba/%m.log
max log size =3D 50
socket options =3D TCP_NODELAY SO_RCVBUF=3D16384 =
SO_SNDBUF=3D16384
printcap name =3D /etc/printcap
local master =3D No
dns proxy =3D No
wins support =3D Yes
idmap uid =3D 16777216-33554431
idmap gid =3D 16777216-33554431
hosts allow =3D 192.168.1., 127.
cups options =3D raw

[printers]
comment =3D All Printers
path =3D /var/spool/samba
printable =3D Yes
browseable =3D No

[shared]
comment =3D Shared file space
path =3D /smb/shared
read only =3D No
guest ok =3D Yes


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