On 02/25/2013 07:29 PM, Jeremy Allison wrote:
On Mon, Feb 25, 2013 at 09:38:51AM +0100, Papp Tamas wrote:
hi All,
We have a glusterfs cluster with 5 nodes on Ubuntu 12.04 amd64.
We use this smb.conf:
[global]
socket options = IPTOS_THROUGHPUT TCP_NODELAY IPTOS_LOWDELAY
SO_SNDBUF=131072 SO_RCVBUF=131072
Remove the above line. It's pure voodoo. Don't second
guess the kernel w.r.t. socket options.
It seems, you're right. However in this case the documentation in default
smb.conf is wrong.
# Most people will find that this option gives better performance.
# See smb.conf(5) and /usr/share/doc/samba-doc/htmldocs/Samba3-HOWTO/speed.html
# for details
# You may want to add the following on a Linux system:
# SO_RCVBUF=8192 SO_SNDBUF=8192
# socket options = TCP_NODELAY
Now this is the config:
[global]
read raw = yes
server string = %h
write raw = yes
max xmit = 131072
dead time = 15
getwd cache = yes
use sendfile=yes
block size = 131072
load printers = no
wins support = no
local master = no
wins server = 192.168.3.7
veto files = /.AppleDouble/
delete veto files = yes
hide dot files = yes
printing = BSD
max protocol = SMB2
min protocol = SMB2
[projects]
path = /W/Projects
browseable = yes
public = yes
guest ok = yes
read only = no
force user = user
force group = user
And it's much better now:)
That will be due to the async requests that the Windows SMB2
redirector uses much more than the SMB1 redirector.
This is from man page:
NT1: Current up to date version of the protocol. Used by Windows NT. Known as
CIFS.
SMB2: Re-implementation of the SMB protocol. Used by Windows Vista
and newer. The Samba implementation of SMB2 is currently marked
experimental!
SMB2 in Samba is fully supported from Samba 3.6.0 onwards.
It was "experimental" (read, didn't really work :-) in
3.5.x and below.
OK, thanks for the answer and thanks so much for the tuning tips.
Every single samba tuning guide starts with that options!
Cheers,
tamas
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