From: Daniel Simon <Daniel.Simon@domain.hid>
To: Jan Kiszka <jan.kiszka@domain.hid>
Cc: xenomai-core <xenomai@xenomai.org>
Subject: Re: [Xenomai-core] measuring tasks execution time
Date: Fri, 29 Jun 2007 17:29:07 +0200 [thread overview]
Message-ID: <20070629172907.698f9586@domain.hid> (raw)
In-Reply-To: <46851E97.7030402@domain.hid>
On Fri, 29 Jun 2007 17:00:39 +0200
Jan Kiszka <jan.kiszka@domain.hid> wrote:
> Exectime is only updated on task switches. So you are not obtaining the true
> value when requesting your own data. Use the same formula for both cases.
yes, but like that the fraction of time spent in the current execution is not
accounted, which might be sometimes useful (e.g. to integrate the cost of a
feedback scheduler in the total control budget)
another potentially useful feature would be also accounting the execution time
spent in secondary mode... no idea on how to do that.
BTW, Posix defines an optional CLOCK_THREAD_CPUTIME which is assumed to provide
this measure ?
Daniel
--
Daniel SIMON Projet NeCS INRIA Rhone-Alpes
Inovallee, 655 avenue de l'Europe, Montbonnot
38 334 Saint Ismier Cedex France
Daniel.Simon@domain.hid Phone:(33)476615328 Fax:(33)476615252
http://necs.inrialpes.fr/people/simon/
next prev parent reply other threads:[~2007-06-29 15:29 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-07 16:23 [Xenomai-help] real time task disapears... memory problem ? desvages
2007-06-07 17:44 ` Jan Kiszka
2007-06-08 10:49 ` [Xenomai-help] measuring tasks execution time Daniel Simon
2007-06-08 11:20 ` [Xenomai-core] " Jan Kiszka
2007-06-08 13:09 ` Daniel Simon
2007-06-08 15:24 ` Jan Kiszka
2007-06-08 16:04 ` Jan Kiszka
2007-06-25 15:51 ` [Xenomai-core] " Daniel Simon
2007-06-25 16:55 ` Jan Kiszka
2007-06-27 8:57 ` Daniel Simon
2007-06-27 11:56 ` Jan Kiszka
2007-06-29 14:43 ` Daniel Simon
2007-06-29 15:00 ` Jan Kiszka
2007-06-29 15:29 ` Daniel Simon [this message]
2007-06-29 15:47 ` Philippe Gerum
2007-06-29 15:56 ` Gilles Chanteperdrix
2007-06-29 15:52 ` Jan Kiszka
2007-07-08 10:11 ` Jan Kiszka
2007-07-09 8:49 ` Daniel Simon
2007-07-11 13:59 ` Daniel Simon
2007-07-11 14:30 ` Jan Kiszka
2007-07-11 15:35 ` Daniel Simon
2007-07-11 15:56 ` Jan Kiszka
2007-07-11 16:55 ` Daniel Simon
2007-07-11 21:20 ` Jan Kiszka
2007-07-12 9:30 ` Daniel Simon
2007-07-12 11:02 ` Jan Kiszka
2007-07-16 16:19 ` Daniel Simon
[not found] ` <1753.194.254.210.7.1181246882.squirrel@domain.hid>
2007-06-08 15:19 ` [Xenomai-help] real time task disapears... memory problem ? Jan Kiszka
2007-06-09 16:06 ` desvages
2007-06-09 17:10 ` Jan Kiszka
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20070629172907.698f9586@domain.hid \
--to=daniel.simon@domain.hid \
--cc=jan.kiszka@domain.hid \
--cc=xenomai@xenomai.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.