Hello,
I have a file server under Debian Lenny, with a 41TB file system (XFS,
24 x 2TB hard drives on RAID 6 on an Areca card)
Reading files with ftp works like a charm and we easily reach the 125
MB/s limit of the GB ethernet card.
But when reading files (on the same clients) from a samba share, we get
around 60 MB/s.
Clients are Windows XP 64 and Seven 64 and show the same performances.
Sadly enough, this server has a 'twin brother' (same hardware) that runs
Windows Server 2008, and reading from a share on it gives a nice 100MB/s.
So why is the samba share so 'slow' compared to ftp or the windows server ?
Here is the smb.conf (samba version is 3.2.5)
-------------------------------------------------------------
[global]
workgroup = WIZZ
server string = Prod1 File Server %v
log file = /var/log/samba/log.%m
max log size = 50
security = share
encrypt passwords = yes
socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=8192
SO_SNDBUF=8192
dns proxy = no
guest account = root
load printers = no
printing = bsd
printcap name = /dev/null
disable spoolss = yes
getwd cache = yes
dead time = 30
[partage]
comment = Partage
browseable = yes
writable = yes
path = /space/partage
guest ok = yes
------------------------------------------------------------
I have also tried without any socket options, or with the following options
socket options = TCP_NODELAY IPTOS_LOWDELAY IPTOS_THROUGHPUT
SO_RCVBUF=262142 SO_SNDBUF=262142 SO_SNDLOWAT SO_RCVLOWAT
min receivefile size=16384
use sendfile = true
aio read size = 1
aio write size = 1
but this did not give any improvement.
Any ideas ?
Thanks
Francois
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