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Message-ID: <fdb072ec041020060166ef9955@mail.gmail.com>
Date: Wed, 20 Oct 2004 09:01:12 -0400
From: Robert Pendell <shinji257 AT gmail DOT com>
Reply-To: Robert Pendell <shinji257 AT gmail DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: High resolution process timing
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Search google for "windows high resolution timer" (no quotes) and that
will probably give some answers.


On Wed, 20 Oct 2004 12:12:37 +0100 (BST), Lionel B
<lionelbuk AT yahoo DOT co DOT uk> wrote:
> Greetings,
> 
> Is it possible in Cygwin (W2k, Pentium 4, gcc 3.3.3) to access a higher
> resolution (or perhaps I mean "granularity") process CPU timer than the libc
> clock() call? I am finding clock() inadequate for some code benchmarking.
> 
> [It is not clear to me whether this is indeed a Cygwin issue, or rather a
> Windows issue and therefore OT here - apologies if so].
> 
> Having browsed the archives, it seems that it may well be possible to access
> high-resolution *system* timers (perhaps using NT API calls to
> QueryPerformanceCounter() & family), but I can see no way to achieve
> per-process timing this way.
> 
> Any pointers appreciated,
> 
> --
> Lionel B
> 
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-- 
Robert Pendell
shinji257 AT gmail DOT com

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