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Hi everyone,
I've got a linux server with some samba shares here. When i read from the shares using a Windows machine i get transfer speeds of ~80 MBps which is what's to be expected of my 2.5" drives.
However, when accessing the share from linux, i get transfer (read) speeds of only 20 MBps.
Now comes the strange thing:
If i open another instance of copying parellell to the other one, the speed is 20 MBps too. I assume this would go up to 80 MBps, but obviously i can at least have 40 MBps.
Why isn't rsync using the full speed? Can you think of an explanation?
Thanks,
demian
Last edited by demian (2010-06-09 22:14:34)
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github
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I've seen this before on my machines as well. Can't explain it. Post your smb.conf - here is mine:
[global]
workgroup = share
server string = arch server
security = user
hosts allow = 192.168.100. 127.
log file = /var/log/samba/%m.log
max log size = 50
socket options = TCP_NODELAY
server string = novelty
work group = novelty
[media]
writeable = yes
valid users = user1,user2
path = /media/media
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Here's another example of the weird behaviour:
The windows machine gets <10 MBps when copying from one shared harddrive but > 70 MBps when copying from another shared harddrive.
The linux machine gets 40 MBps with both harddrives (when using two instances).
I've discovered, that if i use an MTU > 1500 the speed for one instance breaks down to 20 MBps. When using an mtu of 1500 i get ~50% more (33 MBps in one instance (but still only 40 MBps overall)).
My smb.conf:
[global]
workgroup = WORKGROUP
server string = media server
netbios name = htpc
security = user
hosts allow = 192.168.0.
guest account = acc1
username map = /etc/samba/smbusers
name resolve order = hosts wins bcast
wins support = no
socket options = TCP_NODELAY
[home]
comment = home on htpc
path = /home/slave
guest ok = no
available = yes
browsable = yes
public = no
read only = yes
write list = acc3
[media]
comment = media on htpc
path = /media
guest ok = yes
available = yes
browsable = yes
public = yes
read only = yes
write list = acc3
[incoming]
comment = incoming on htpc
path = /media/music/incoming
guest ok = yes
available = yes
browsable = yes
public = yes
writable = yes
For now, I'll be using NFS4 on the linux machine which gives me solid speeds of 30 - 70 MBps. I'm still curious what's wrong with samba here though.
Last edited by demian (2010-06-10 13:11:11)
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I don't know - your config seems normal. Is there a samba mailing list you can post on to get some feedback?
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