Samba Troubles, Slow connections

marquischan · Tux's lil' helper Joined: 19 Mar 2005 Posts: 108

I have this problem before
After checking, the LAN card got problems

Another time i have problem in slow connection is I have set the log level to 100.

The machine is too slow to log down EVERY traffic.

motiv · n00b Joined: 27 Sep 2006 Posts: 1 Location: Virginia

To those who are getting reasonable speeds from gigabit (10-13MB/s), I've found that adding the directio option to the mount options for cifs added about 9-10MB/s to the transfer rate. I get peak transfers of 20-22MB/s now.

someone19 · n00b Joined: 26 Sep 2006 Posts: 51

I just solved the same problem myself - I made samba my WINS server and pointed my XP boxes to it as such.

Now network browsing has gone from night to day and transfers take 75-90% of my 100mbit network (estamates using windows taskmgr network graph)

Ateo · Posted: Mon Oct 02, 2006 8:25 pm Post subject:

Digging up an old thread....

My sluggish speeds between my laptop (gentoo) and my samba server (also gentoo) were fixed by swapping from smbfs to cifs... There has never been an issue between a windows client to my samba server.

darkphader · Veteran Joined: 09 May 2002 Posts: 1205 Location: Motown

koskh · n00b Joined: 14 Jul 2007 Posts: 4

use in [global]
large readwrite = no

It had helped for my home workstations (Linux (samba 3)+ WindowsXP).

darkphader · Veteran Joined: 09 May 2002 Posts: 1205 Location: Motown

ervin.peters · Posted: Sat Jul 14, 2007 12:58 pm Post subject:

kik0r · n00b Joined: 21 Jun 2004 Posts: 16

Same problem, I solved changing NIC.
My setup is a P5B with integrated gigabit (lspci said 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. Unknown device 8168 (rev 01)
The performance was perfect (65Mb/s on nfs with sata2 disk to my media center, fast ssh...) except for samba (I need to share to windows computer).
I was able to tweak the settings to have good performance it was something like 500kb/s. I noticed that running a find loop or a second copy was
boosting the transfert to 4mb/s, pretty weird.

I add a spare gigabit controller, netgear basic gigabit, lspci said 07:02.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169 Gigabit Ethernet (rev 10)

It's almost the same except it works great with samba !

The strange thing is it's the same kernel module for both gigabit adapter.

Also, I think I read somewhere Realtek as a new driver version 8.x and that it has been merged in kernel 2.6.22, I haven't tried, but it can also be a solution.

Maybe it help someone on this thread

_________________
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Nautilus multi root patch : http://kik0r.free.fr/nautilus_tree_patch/

renaud91 · n00b Joined: 16 Aug 2007 Posts: 2

Hello,

I am on a Gentoo 2007 up to date system.

I also had the same problem, and after 5 days playing with 2.4, 2.6 Kernel, Samba's versions, Samba's options, file systems, I finally changed my network card and asked to Samba to use this interface instead the realtek one (that I did not deactivate).

My problem was :
- copying file from windows to samba = very fast, normal Giga byte speed
- copying file from samba to windows = 3min for a 4Mg file ?????, unusable
- using FTP = no pblm at all, normal speed both sides
I also played with ethtool, changing options, but passing in 100Mbps changed nothing for me, and even if it had, I am on a Gb lan, I want Gb perf.

Note that I also tried the last Realtek driver version 8.0.x.x for 2.6 kernel, but it changed nothing at all.

My network card was an internal realtek 8111, that came with my Asus mother board. Now, it is a simple giga byte from linksys and it works perfecly (the wake on lan too, by the way :-)

).

best regards,
Renaud.

Edit: November 2007, since weather was bad, I decided to re-install all my Gentoo server. Every thing went 'almost' fine, but after a few days I was able to re-install my samba server. Very funny thing happen then, since I was slow in the other way (server to client was slow), I checked if the samba used the realtek or not. No, it was using the 'normal an efficient' dlink one. So, what, I tried to play with all samba parametesr again, nothing ....
And finnaly, I found my problem, it was the IO Scheduller of my 2.6 Kernel, I set to CFQ and after a recompile, all went fine.

jeancf · Posted: Mon May 12, 2008 3:51 pm Post subject:

I was experiencing very similar symptoms on my home server. I had excellent TX performance (i.e. serving files) at ~20MB/s and extremely poor RX performance (i.e. saving files on server) at ~ 0.5MB/s with both Linux and Windows clients.

My server is equipped with a Realtek 8169 Gigabit Ethernet NIC
gentoo-sources-2.6.24-r7
samba-3.0.28

The issue is related to the NIC. To resolve you have 2 options:

download and compile the latest driver from the Realtek web site (untested).
configure your kernel with Device Drivers->Network device support->Ethernet (1000 Mbit)->Realtek 8169 gigabit ethernet support as a module or in the kernel
select Use Rx Polling (NAPI) (EXPERIMENTAL)

This option was unchecked in my original configuration. Enabling it and recompiling the kernel gives me >20MB/s throughput in both TX and RX with Samba.

From the kernel help text:

javeree · Guru Joined: 29 Jan 2006 Posts: 453

Same problem, but different NIC: RTL-8139