Samba send v. slow under feisty after upgrade

[Alex Bond]

Binary package hint: samba

Hi

I'm running feisty (Linux animal 2.6.20-15-generic #2 SMP Sun Apr 15 06:17:24 UTC 2007 x86_64 GNU/Linux
) as my principal desktop in a small mixed network of Windows, Macs and Linux. We use Samba as our common file sharing protocol across the gigabit network (lowest common denominator...)

Since the upgrade from edgy to feisty I've been having problems distributing files from my desktop using Samba. Transfer speeds are ridiculously slow (50 kb/s). The problem manifests either as me sitting at the feisty desktop and copying files to other machines, or from other machines copying files off the feisty desktop. However copying files *to* the feisty desktop is fine (5s to copy 100 Mb typically). The problem seems to be independent of the machine connecting to my feisty desktop - XP machines and another Linux box running Mandriva all show the same symptoms. Transfers between all other machines on the network via samba is fine. I don't experience any samba browsing problems either to or from the feisty machine. I've replicated the slow transfers using the Nautilus browser and from the command line.

NFS transfer speeds to and from the feisty desktop to the other linux machine are fine.

One interesting symptom is that if the feisty box is also receiving data via the network (can be anything, downloading off the internet for example) then the samba transmission speed goes up to normal for the duration of the download and then drops down to the very low speed as before. Weird.

I've tried mucking about with the various network parameters (TCP_NODELAY etc), enabling and disabling WINS support and the 'msdfs' fix. My smb.conf is entirely 'out of the box', save for changing to 'share' security and enabling a couple of shares.

Thanks

[Alex Bond (alex-bond76)]

UPDATE: Problem fixed - this is NOT a Samba issue. The problem was caused by the r8169 driver module for my realtek gigabit network card. Problem was resolved by forcing the installation and use of the realtek r1000 driver (v1.05 - off the realtek website). Now transfers are fine under all available protocols.

Can we nudge this across as a driver/kernel issue??

[Zumsel (karsten-henning)]

I have the same problem with Kubuntu feisty and also gutsy.

I work with feisty since several months without problems. But since two weeks the speed for filetransfer to and from samba-shares is very slow (~50 KB/s).

To find the problem, I installed an new Kubuntu gutsy (32-Bit) and also an Kubuntu gutsy (64-Bit). Both systems have the same behavior. I think the reasen is the specific combination from network adapter (onboard) and smbfs/cifs-protocol.

I work on a AMD64 core 2 duo 3800+ with nvidia-chipset.
my network-adapter: lspci -->
00:14.0 Bridge: nVidia Corporation MCP51 Ethernet Controller (rev a3).