High resolution process timing

Robert Pendell shinji257@gmail.com
Wed Oct 20 14:17:00 GMT 2004


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@yahoo.co.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@gmail.com

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