From: Robert Schwebel <r.schwebel@pengutronix.de>
To: Wolfgang Grandegger <wg@grandegger.com>
Cc: Thomas Gleixner <tglx@linutronix.de>, linux-rt-users@vger.kernel.org
Subject: Re: High latencies on MPC5200 with patch-2.6.24-rc5-rt1
Date: Wed, 9 Jan 2008 10:03:45 +0100 [thread overview]
Message-ID: <20080109090345.GG3177@pengutronix.de> (raw)
In-Reply-To: <20080108154947.GB3177@pengutronix.de>
On Tue, Jan 08, 2008 at 04:49:47PM +0100, Robert Schwebel wrote:
> This is on an idle system:
I've quickly ported the patch stack to 2.6.24-rc5-rt1, and it doesn't
really work:
----------8<----------
root@phyCORE-MPC5200B-tiny:~ cyclictest -n -p80 -t1 -i10000 -l 1000
0.44 0.35 0.15 1/44 483
T: 0 ( 483) P:80 I: 10000 C: 992 Min: -490034 Act: -410032 Avg: -243020 Max: -10
----------8<----------
Even on an idle system I get negative values and a "running" Act value.
I'll have to clean up the patch stack and check what's going on.
Robert
--
Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de
Pengutronix - Linux Solutions for Science and Industry
Handelsregister: Amtsgericht Hildesheim, HRA 2686
Hannoversche Str. 2, 31134 Hildesheim, Germany
Phone: +49-5121-206917-0 | Fax: +49-5121-206917-9
next prev parent reply other threads:[~2008-01-09 9:38 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-08 10:13 High latencies on MPC5200 with patch-2.6.24-rc5-rt1 Wolfgang Grandegger
2008-01-08 15:49 ` Robert Schwebel
2008-01-08 16:41 ` Wolfgang Grandegger
2008-01-08 20:40 ` Robert Schwebel
2008-01-08 21:25 ` Juergen Beisert
2008-01-09 9:03 ` Robert Schwebel [this message]
2008-01-09 9:50 ` Wolfgang Grandegger
2008-01-09 14:08 ` Robert Schwebel
2008-01-09 22:51 ` Robert Schwebel
2008-01-10 0:01 ` Robert Schwebel
2008-01-10 13:17 ` Wolfgang Grandegger
2008-01-10 14:35 ` Robert Schwebel
2008-01-10 16:23 ` Robert Schwebel
2008-01-10 21:27 ` Robert Schwebel
2008-01-10 21:49 ` Wolfgang Grandegger
2008-01-10 15:48 ` Juergen Beisert
2008-01-11 9:22 ` Wolfgang Grandegger
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=20080109090345.GG3177@pengutronix.de \
--to=r.schwebel@pengutronix.de \
--cc=linux-rt-users@vger.kernel.org \
--cc=tglx@linutronix.de \
--cc=wg@grandegger.com \
/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.