Message-Id:	<m0xFdgN-000S1mC@inti.gov.ar>
Comments:	Authenticated sender is <salvador AT natacha DOT inti DOT edu DOT ar>
From:	"Salvador Eduardo Tropea (SET)" <salvador AT inti DOT edu DOT ar>
Organization:	INTI
To:	Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
Date:	Mon, 29 Sep 1997 14:14:17 +0000
MIME-Version:	1.0
Subject:	Re: Clipboard timing, strange results, Rhide (Was: DJGPP,
CC:	djgpp AT delorie DOT com

Eli wrote:
> On Thu, 25 Sep 1997, Salvador Eduardo Tropea (SET) wrote:
> 
> > In plain DOS the effect is the reverse. RHIDE slows down the programs, or at 
> > list the timing routines seems to indicate that. My plasmas run slower from 
> > RHIDE and the meassured time is less stable than trying from
> > DOS. Why? I don't know.
> 
> I have asked this before on this thread, but didn't see any answers,
> so I will ask again: doesn't RHIDE hook the timer inetrrupt?  If it
> does, and if it doesn't unhook it when running child programs, then
> this might explain the behavior on DOS (an extra level of interrupt
> handling).  And Windows might change its scheduling of a program that
> has hooked the timer.
Robert must ask it, but I never saw RHIDE hooking the timer. Perhaps Robert 
added it to show the free memory.
And another thing: The timing differences aren't under Windows but DOS. I never 
time things under Windows.

SET 
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