Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!snorkelwacker!bloom-beacon!SHAMASH.MCRCIM.MCGILL.EDU!mouse
From: mouse@SHAMASH.MCRCIM.MCGILL.EDU (der Mouse)
Newsgroups: comp.windows.x
Subject: Re:  Performance Analysis of X windows
Message-ID: <9007172208.AA01492@shamash.McRCIM.McGill.EDU>
Date: 17 Jul 90 22:08:36 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 34

> I am interested in pursuing the performance of X windows with repect
> to the communication overhead and local/remote processing split.

Assuming you mean the X Window System[%],

> 1. Where is the protocol definition documented ?

See the mit/doc/Protocol/ directory in the R4 distribution.

> 3. Do different vendor realizations differ in a non-trivial manner
>    with respect to the communication/processing split posed above ?
>    Do different releases ( i.e R3/R4) differ in this matter ?

In both cases: no.  Why?  Because they interoperate, which means that
they must speak the same protocol, implying that the same things must
be done on both sides of the wire.  (There are some extensions, like
the various PostScript implementations, that allow this split to be
changed, but I'm talking about just core X here.)

> 4. Have any studies been conducted on the performance of X or other
>    windowing systems on wide area networks like the Internet ?

Not that I know of, but I've run X clients across the net often enough
to have some idea how it affects them.  But I have nothing formalized.

> Email replies will be appreciated.

But you don't say where to send them.  I've made a guess from the
headers, but don't feel confident it'll get to you.

					der Mouse

			old: mcgill-vision!mouse
			new: mouse@larry.mcrcim.mcgill.edu