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From: randy@erik.UUCP (Randy Brown)
Newsgroups: comp.windows.x
Subject: Re:  More than 4096 bytes per write to an Xserver on a Sun?
Message-ID: <9102131845.AA20049@erik.uucp>
Date: 13 Feb 91 18:47:06 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 13


	From: uunet!cimage.com!paulh (Paul Haas)
	Organization: Cimage Corp, Ann Arbor, MI

	Our application tends to spend too much time talking to the X server.
	We spend many minutes moving large images between the server and the
	client.  

This is an ideal application for the MITSHM extension.  You can put a 
pixmap (drawable) in shared memory, render on it with the server, operate
on it with the client, and display it with a simple XCopyArea(), with no
actual transmission of the image data required.  Both the MIT X11R4 server
for Sun and Sun's OpenWindows server include this extension. ... rb