From: Philippe Gerum <rpm@xenomai.org>
To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: Jan Kiszka <jan.kiszka@domain.hid>, xenomai-core <xenomai@xenomai.org>
Subject: Re: [Xenomai-core] ns vs. tsc as internal timer base
Date: Tue, 13 Jun 2006 19:58:29 +0200 [thread overview]
Message-ID: <448EFCC5.60308@domain.hid> (raw)
In-Reply-To: <17550.61982.685449.470866@domain.hid>
Gilles Chanteperdrix wrote:
> Philippe Gerum wrote:
> > Redone the check here on a Centrino 1.6Mhz, and still have roughly x20
> > improvement (a bit better actually). I'm using Debian/sarge gcc 3.3.5.
>
> I think I remember that Pentium M has a much shorter mull instruction
> than other processors of the family.
>
That would explain. Anyway, as John Stulz put it:
"math is hard, lets go shopping!"
--
Philippe.
next prev parent reply other threads:[~2006-06-13 17:58 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-13 10:51 [Xenomai-core] ns vs. tsc as internal timer base Jan Kiszka
2006-06-13 11:16 ` Philippe Gerum
2006-06-13 11:56 ` Jan Kiszka
2006-06-13 12:31 ` Philippe Gerum
2006-06-13 13:07 ` Gilles Chanteperdrix
2006-06-13 13:28 ` Philippe Gerum
2006-06-13 13:34 ` Gilles Chanteperdrix
2006-06-13 13:45 ` Philippe Gerum
2006-06-13 13:33 ` Jan Kiszka
2006-06-13 13:51 ` Philippe Gerum
2006-06-13 16:19 ` Jan Kiszka
2006-06-13 16:29 ` Gilles Chanteperdrix
2006-06-13 17:04 ` Philippe Gerum
2006-06-13 17:13 ` Gilles Chanteperdrix
2006-06-13 17:58 ` Philippe Gerum [this message]
2006-06-14 9:25 ` Jim Cromie
2006-06-14 12:29 ` Philippe Gerum
2006-06-14 13:07 ` Jan Kiszka
2006-06-14 16:04 ` Jan Kiszka
2006-07-25 18:26 ` [Xenomai-core] Timer optimisations, continued Jan Kiszka
2006-07-27 8:53 ` Philippe Gerum
2006-07-27 12:42 ` Gilles Chanteperdrix
2006-07-27 13:19 ` Philippe Gerum
2006-07-27 13:54 ` Jan Kiszka
2006-07-27 14:10 ` Philippe Gerum
2006-06-13 11:59 ` [Xenomai-core] ns vs. tsc as internal timer base Gilles Chanteperdrix
2006-06-13 12:00 ` Anders Blomdell
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