From: Ville-Pertti Keinonen <will@exomi.com>
To: Xavier Leroy <xavier.leroy@inria.fr>
Cc: "Daniel Bünzli" <daniel.buenzli@epfl.ch>, caml-list@inria.fr
Subject: Re: [Caml-list] Profiling a function execution
Date: Wed, 26 Nov 2003 14:23:32 +0200 [thread overview]
Message-ID: <20031126122332.GA761@exomi.com> (raw)
In-Reply-To: <20031125190553.B1064@pauillac.inria.fr>
On Tue, Nov 25, 2003 at 07:05:53PM +0100, Xavier Leroy wrote:
> At least under Linux, getrusage() doesn't provide more accuracy than
> times(), since the kernel maintains user and system time as an
> integral number of clock ticks. I haven't looked at other Unix
> kernels, but I suspect that the additional precision made possible by
> the getrusage() syscall is simply not exploited.
4.4 BSD derivatives (except Darwin/MacOS X).
O^HD^HTru64.
> (Besides, times() is part of the POSIX standard while getrusage() is not,
> meaning less portability.)
You can always use something like #ifdef HAS_GETRUSAGE
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prev parent reply other threads:[~2003-11-26 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
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 [this message]
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