Ethereal-users: [Ethereal-users] Why is WinXPPro SMB slower than Win98SE SMB?

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From: "Andy Bender" <drew.bender@xxxxxxxxxxx>
Date: Fri, 16 Jul 2004 16:44:09 -0700
Howdy, y'all; I'm trying to determine why a 166 MHz Win98SE machine can,
from a DOS box, open a file on a 98SE server via SMB in less time than can a
1.3 GHz XP client running the same DOS app.

Despite perusing Chris Hertel's excellent (and highly recommended)
"Implementing CIFS" to grog the basics of SMB, and going thru all of
Microsoft's XP support docs about SMB, I don't see any collisions or other
anomalies that suggest that there's something wrong with the XP box.
Certainly the captures look rather different between the PDU stream
generated by the XP box and the 98SE box, and there are a couple of points
in the capture log where coupla seconds go by before something happens.
However, I don't see anything particularly weird.

SMB signing is off, and in the simple test scenario that I have (just the 2
clients, and the 98SE file server), I wouldn't expect that oplock logic in
XP would make a difference. But the XP client is definitely 5-10 sec. slower
when opening a file on a shared volume.

Anybody else looked at this?

TIA.

APJ.