Title: RE: Very bad performance when copying large files from windows to samba-share

I looked at the captures of win98 uploading to amithlon and redhat. They are not rabbit-pellet mode. The protocol is using full sized packets, 64K chunks, and has between two and four packets on the wire at a time. There are no flush commands present, which is the main characteristic of the slow transfer mode.

Those two transfers appear to be operating rather quickly, with end-to-end response time in the 6-10ms range, and streamed packet intervals around 30us. I measured one 64K chunk taking 260ms to be transferred, which is close to a 2Mb/S transfer rate.

Is there something else I should look at?

-----Original Message-----
From: Ulf Bertilsson [mailto:[EMAIL PROTECTED]]
Sent: Monday, June 24, 2002 2:54 AM
To: Esh, Andrew; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: RE: Very bad performance when copying large files from windows
to samba-share
Importance: Low


I finaly got the mashine up and running again =D

If it's still interesting here is a download point for captures..

http://www.birrabrothers.com/tiger/download/

I'm puzzeled over that I also have this error in win2k.

--
Ulf

-----Original Message-----
From: Esh, Andrew [mailto:[EMAIL PROTECTED]]
Sent: Monday, April 22, 2002 4:15 PM
To: Ulf Bertilsson; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: RE: Very bad performance when copying large files from windows
to samba-share


Please send a copy of any tcpdumps to me as well, if you would. I spent
a lot of time characterizing the Rabbit Pellet transfer mode. I'll
recognize it right away, if that is what this is.
-----Original Message-----
From: Ulf Bertilsson [mailto:[EMAIL PROTECTED]]
Sent: Monday, April 22, 2002 3:01 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: RE: Very bad performance when copying large files from windows
to samba-share
Importance: Low


> >         Just out of curiosity, what did security=server contribute:
> >         added latency in some obscure part of the process???
>
> As far as we could tell...  yes.  ;)
>
> I really should have documented that whole episode.
I have an current "issue" with Samba 2.0.7 and an Win98 box.
Peak at ~800kb/s one way, 20-30kb/s other way (10MB enviroment)
I have some captures I will show Chris.
Could be relevant in this contex..
Otherwise, sorry for the OT :)
--
Ulf

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