Path: utzoo!attcan!uunet!cs.utexas.edu!rutgers!apple!bloom-beacon!APOLLO.COM!bowbeer
From: bowbeer@APOLLO.COM (Joe Bowbeer)
Newsgroups: comp.windows.x
Subject: X benchmarking
Message-ID: <8905050502.AA03307@xuucp.ch.apollo.com>
Date: 5 May 89 05:02:03 GMT
Sender: daemon@bloom-beacon.MIT.EDU
Organization: The Internet
Lines: 24

I have a question concerning the synchronization of input and
output that is motivated timing of input events vs
output requests. 
motivated by the need to measure X graphics
performance.
Also a related question about the timing of output and input.

How can a benchmark client tell when the graphics requests
have really finished? I saw one benchmark client that used
a XQueryPointer() call for this purpose. According to my
understanding, XQueryPointer() will flush Xlib's buffer
and cause the server to process the graphics requests, but
if, say, the graphics hardware is itself buffered, the
graphics requests may not have actually finished at the
time the server is responding to the XQueryPointer request.

Right? If so, how can a benchmark client tell when the
graphics requests are really finished?

Joe Bowbeer

  bowbeer@apollo.com
  {attunix,decvax,mit-eddie}!apollo!bowbeer
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