From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Charles Steinkuehler <charles@steinkuehler.net>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] Altera Cyclone V
Date: Tue, 07 Jan 2014 23:47:13 +0100 [thread overview]
Message-ID: <52CC83F1.40000@xenomai.org> (raw)
In-Reply-To: <52CC7D71.4040703@steinkuehler.net>
On 01/07/2014 11:19 PM, Charles Steinkuehler wrote:
> The single-core A8 on the
> BeagleBone is good for about 25 uS typical and 80 uS or so worst case
> latency.
That is really high. On a 720MHz OMAP3, with the latency test running
with a 100us period, I typically get latencies close to 40us (under
dohell load). Granted I do not run many functionalities of the SOC
(typically, not the graphic processor), but I would not expect latencies
to get so high. Is there any chance you could trigger a trace with the
I-pipe tracer?
--
Gilles.
next prev parent reply other threads:[~2014-01-07 22:47 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-07 19:52 [Xenomai] Altera Cyclone V Lowell Gilbert
2014-01-07 20:25 ` Gilles Chanteperdrix
2014-01-08 22:45 ` Lowell Gilbert
2014-01-08 23:19 ` Gilles Chanteperdrix
2014-01-09 18:06 ` Lowell Gilbert
2014-01-10 0:14 ` Gilles Chanteperdrix
2014-01-14 0:15 ` Lowell Gilbert
2014-01-07 22:19 ` Charles Steinkuehler
2014-01-07 22:47 ` Gilles Chanteperdrix [this message]
2014-01-07 22:55 ` Charles Steinkuehler
2014-01-07 23:13 ` Gilles Chanteperdrix
2014-01-08 0:51 ` Charles Steinkuehler
2014-01-08 4:04 ` Charles Steinkuehler
2014-01-08 8:21 ` Gilles Chanteperdrix
2014-01-08 8:58 ` Gilles Chanteperdrix
2014-01-11 10:22 ` [Xenomai] i-pipe tracer on in production kernels? (was Re: Altera Cyclone V) Michael Haberler
2014-01-11 12:16 ` Gilles Chanteperdrix
2014-01-11 18:11 ` Gilles Chanteperdrix
2014-01-11 18:20 ` Philippe Gerum
2014-01-11 18:27 ` Gilles Chanteperdrix
2014-01-11 19:01 ` Philippe Gerum
2014-01-11 19:11 ` Gilles Chanteperdrix
2014-01-08 3:21 ` [Xenomai] Altera Cyclone V Lowell Gilbert
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=52CC83F1.40000@xenomai.org \
--to=gilles.chanteperdrix@xenomai.org \
--cc=charles@steinkuehler.net \
--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.