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From: Anders Blomdell <anders.blomdell@domain.hid>
To: Jan Kiszka <jan.kiszka@domain.hid>
Cc: xenomai-core <xenomai@xenomai.org>
Subject: Re: [Xenomai-core] ns vs. tsc as internal timer base
Date: Tue, 13 Jun 2006 14:00:02 +0200	[thread overview]
Message-ID: <448EA8C2.6010004@domain.hid> (raw)
In-Reply-To: <448E98A3.6080707@domain.hid>

Jan Kiszka wrote:
> Hi,
> 
> To avoid loosing the optimisation again in ns_to_tsc, I thought about
> basing the whole internal timer arithmetics on nanoseconds instead of
> TSCs as it is now. 
Good idea, makes it simpler to adopt to laptop frequency scaling and deep ACPI 
sleep, i.e. sync Xenomai time to the ACPI timer.

/Anders

-- 
Anders Blomdell                  Email: anders.blomdell@domain.hid
Department of Automatic Control
Lund University                  Phone:    +46 46 222 4625
P.O. Box 118                     Fax:      +46 46 138118
SE-221 00 Lund, Sweden


      parent reply	other threads:[~2006-06-13 12:00 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
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 [this message]

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