Apple OS X SMB issues across VPN
David.Collier-Brown at Sun.COM
Wed Dec 14 13:26:34 GMT 2005
The red hat Samba did not suffer this performance hit, so
it's not likely to be a SMB protocol issue as such, more
a issue with the implementatons on the two OSs.
I suspect it has **something** to do with latency,
as the flow graph in ethereal looks like a stairwell (;-))
Dan, could we have a new packet capture from the OS-X
server now the VPN issue is fixed? It should be as close
as possible to the exact same user scenario as before.
Christopher R. Hertel wrote:
> On Tue, Dec 13, 2005 at 01:17:13PM -0700, Dan Tappin wrote:
>>Just an update. I have managed to resolve a few issues. I think I
>>am back to a samba issue though.
>>I had an unknown duplex issue with my ISP. I have 10-half at the VPN
>>site and 10-full here.
> Cool. That's one down. :)
>>I have run a few tests and I can get ~ 6MB/s to both my Xserve and my
>>test RH SMB servers on the local LAN. I have played with all the
>>smb.conf options and there does not seem to be any difference at
>>least for the smbclient. I need to run real world performance tests
>>on my varies local Windows clients (98, 2K and XP).
>>The VPN smbclient transfers are another story. I can only manage ~
>>150 kB/s. This is from the RH server at that location via
>>smbclient. A wget transfer can get 400+ kB/s via http. It's not
>>apples to apples but a good indiaction that something is not right on
>>the samba side.
> Not necessarily. HTTP is less susceptible to latency issues than SMB.
> It would be good to test the same clients against a Windows server over
> the same connection to see if Windows is any faster. If not, then it's
> time to look more closely at those packets again.
> Sorry I haven't had time for that. Life has gotten in the way.
> Chris -)-----
David Collier-Brown, | Always do right. This will gratify
Sun Microsystems, Toronto | some people and astonish the rest
davecb at canada.sun.com | -- Mark Twain
(416) 263-5733 (x65733) |
More information about the samba-technical