On Mon, Aug 08, 2005 at 03:12:55PM +0200, David Beck wrote: > Hello There, > > After having googled the whole internet for days I decided to go public > with this issue. > The result of my google queries so far is that there are plenty of > others with the very same problem I have and noone posted a reasonable > answer to this: > > Using Samba 3 with XP gets bad performance. I tested this on Tru64 5.1b > and FreeBSD 5.3 with the very same symptoms. > The throughput bw XP and Samba goes up and down. It starts transfering > with a reasonable speed and after having transfered around 16 megs it > slows down. > I tried many configuration options regarding locking, tcp settings, xmit > size and every combination that could make any sense for me. > > Then I gave up with this configuration mess as I could lower the > performnce easily, but the performance jittering was the same. > > Now a few notes before I continue: I tested the FreeBSD server on the > loopback interface and the file write speed was around 43 Megs that is > close to the disks maximum. I also tested the XP machine with a Windows > server and the write performnce was around 10 Megs on a 100Mbit link. In > addition to that the FreeBSD machine is at my home and the Tru64 and the > Windows server are where I work. I'm pretty sure that this is not a > network issue. > > After spending a lot of time with investigation I decided to go deeper > in this issue. I installed ethereal to capture the traffic and compare > the results bw XP-Windows and XP-Tru64. The test was to copy 50Meg file > to both servers and capture the packets. To my surprise the conversation > was quite different. > > XP-Windows (excerpt): > - nt create and x > - trans2: query file info internal > - set file info > - tcp data stream... > > XP-Samba (excerpt): > - nt create and x > - trans2: query file info internal > - (query file info + write and x request) many times, incresing offset, > one byte length > - tcp data stream....
Can you send me the ethereal capture traces please ? I have a theory... Jeremy. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba