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[Caml-list] Profiling a function execution
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Date: -- (:)
From: Richard Jones <rich@a...>
Subject: Re: [Caml-list] Profiling a function execution
On Sat, Nov 15, 2003 at 12:11:17PM +0100, Wolfgang Lux wrote:
> Richard Jones wrote:
> 
> >If you're using a Pentium-class machine, then a nice trick is to wrap
> >the RDTSC assembly instruction and call that. It returns number of
> >clock cycles elapsed (a 64 bit number IIRC). Here's some code to get
> >you started:
> 
> This looks like complete nonsense to me. This will neither distinguish
> user and system mode execution times. Even worse, clock cycles will
> not have any meaning if the operating system chooses to perform a
> task switch while the profiled function is executed.

Obviously. It was only a suggestion after all ...

Rich.

-- 
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