From: Ville-Pertti Keinonen <will@exomi.com>
To: Brian Hurt <bhurt@spnz.org>
Cc: "Daniel Bünzli" <daniel.buenzli@epfl.ch>,
"Ocaml Mailing List" <caml-list@inria.fr>
Subject: Re: [Caml-list] Profiling a function execution
Date: Fri, 14 Nov 2003 14:23:49 +0200 [thread overview]
Message-ID: <20031114122349.GA676@exomi.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0311131745160.5009-100000@localhost.localdomain>
On Thu, Nov 13, 2003 at 05:53:01PM -0600, Brian Hurt wrote:
> Clocks on computers have a 10ms quantiziation- i.e., they measure
> everything as multiples of 10 milliseconds. All measurements are accurate
No they don't, hardware timers usually run at at more than a MHz. Most
operating systems provide interfaces with limited precision (this usually
varies between 100 and 1000 Hz), but on systems that actually read the
clock and don't just count interrupts, getrusage is much more accurate
than times.
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next prev parent reply other threads:[~2003-11-14 12:23 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-13 22:34 Daniel Bünzli
2003-11-13 23:53 ` Brian Hurt
2003-11-14 12:23 ` Ville-Pertti Keinonen [this message]
2003-11-14 12:33 ` Richard Jones
2003-11-15 11:11 ` Wolfgang Lux
2003-11-15 12:21 ` David MENTRE
2003-11-15 12:54 ` Richard Jones
2003-11-25 18:05 ` Xavier Leroy
2003-11-25 21:54 ` Daniel Bünzli
2003-11-25 22:38 ` Kim Nguyen
2003-11-26 12:23 ` Ville-Pertti Keinonen
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