[Samba] Large Files vs. Speed

[Alex February]

Hi Patrick, 

I've had similar problems to yours as far as speed is concerned, and while I haven't been able to completely resolve the issue, I have gotten better performance than I had before. 
Unfortunately, tweaking Samba to your speed needs is a bit of a black art, I can however point you to some info to help.

The first FM to look at is this one:
http://www.dd.iij4u.or.jp/~okuyamak/Documents/tuning.english.html

The second thing to try is to ensure that under socket options in smb.conf you have the following:

socket options = SO_RCVBUF=8760 SO_SNDBUF=8760 TCP_NODELAY IPTOS_LOWDELAY

The SO_RCVBUF and the SO_SNDBUF will have to be tweaked depending on your network.


Hope this helps.

Good Luck!
Alex 

-----Original Message-----
From: samba-bounces+afebruary=supplychainconnect.com at lists.samba.org
[mailto:samba-bounces+afebruary=supplychainconnect.com at lists.samba.org]O
n Behalf Of Patrick blitz
Sent: 19 July 2005 10:45
To: samba at lists.samba.org
Subject: [Samba] Large Files vs. Speed


Hey Lists.

i'm pretty sure my Problem is pretty common, so please point me to the FM, if there is any (i couldn't find it searching the list archives and  google)
here's the deal:

i've a Linux Box as a Server for a small VideoEditing 3D Company. The Server and Workstations are connected over 1GBit Ethernet. The Linuxserver runs Suse (9.2 if i'm not mistaken). The Shares in question are on two IDE Disks.

Problem:
The overall Speed of the System, esp. under a bit more Load, is way below the Windows System that was on the box before. 
Writting Two Files with about 300 MB each takes up to 2 Minutes each (which is just too long for 1Gbit). 

I know that a big part of this are using IDE - Disks, but still, why would WinXP be faster writting those than Linux?

Any turns i could turn to make samba a bit faster saving the files?

All Parameters in smb.conf are in Default.

Thanks a bunch,

Patrick
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