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Thread View: comp.sys.sgi.graphics
3 messages
3 total messages Started by Frans van Hoesel Mon, 04 Jan 1993 10:13
slow X wanted
#69
Author: Frans van Hoesel
Date: Mon, 04 Jan 1993 10:13
20 lines
1396 bytes
normally I work locally on my Indigo and the graphics (more specific the
X server) is very fast. Now I want it to slow down by a factor of 10..100
so I can see what happens to my program on loaded communication lines
Also it makes it easier to check for redundant draws (those that can
be elft out without any harm to the net result)

I tried to do this naively, by simply starting many programs. This however
makes the system behave in bursts (I runs a little time on one program
swaps the next program, runs that etc...) I would like a smooth
degradation of my otherwise fast indigo as if it runs on a clock speed of 
2 MHZ (or lower)

Can this be done, without altering the source code of my program?

-- frans
-- 
--    ==============================================================    --
----  ===  frans van hoesel             hoesel@igc.ethz.ch       ===  ----
--    ==============================================================    --
Re: slow X wanted
#72
Author: Mark Kilgard
Date: Tue, 05 Jan 1993 04:20
29 lines
1660 bytes
In article <1993Jan4.101344.25616@bernina.ethz.ch>, hoesel@igc.ethz.ch
(Frans van Hoesel) writes:
|> 
|> normally I work locally on my Indigo and the graphics (more specific
|> the
|> X server) is very fast. Now I want it to slow down by a factor of
|> 10..100
|> so I can see what happens to my program on loaded communication lines
|> Also it makes it easier to check for redundant draws (those that can
|> be elft out without any harm to the net result)
|> 
|> I tried to do this naively, by simply starting many programs. This
|> however
|> makes the system behave in bursts (I runs a little time on one program
|> swaps the next program, runs that etc...) I would like a smooth
|> degradation of my otherwise fast indigo as if it runs on a clock speed
|> of 
|> 2 MHZ (or lower)
|> 
|> Can this be done, without altering the source code of my program?

Yes, try using xscope (the X11 protocol decoder).  It will greatly
slow down executition of X clients.  It should be part of 4.0.x IRIX
and you can read the manual page to learn how to use it.

xscope sits between an X client and server decoding the X11 protocol
(in the process slowing down the conversation).

- Mark
Re: slow X wanted
#73
Author: Skip Montanaro
Date: Tue, 05 Jan 1993 15:43
11 lines
1026 bytes
In article <1993Jan5.042044.20850@odin.corp.sgi.com> mjk@hoot.asd.sgi.com (Mark Kilgard) writes:

   Yes, try using xscope (the X11 protocol decoder).

And if that doesn't slow it down enough, you can always chain multiple
xscopes together:

	X(Indigo) <--> xscope <--> xscope ... <--> client

--
Skip (montanaro@crd.ge.com)
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