From: Robert Schwebel <r.schwebel@pengutronix.de>
To: Michael Schnell <mschnell@lumino.de>
Cc: linux-embedded@vger.kernel.org
Subject: Re: AMP on an SMP system
Date: Fri, 2 Aug 2013 13:42:25 +0200 [thread overview]
Message-ID: <20130802114225.GR3880@pengutronix.de> (raw)
In-Reply-To: <51FB6EE1.3090708@lumino.de>
On Fri, Aug 02, 2013 at 10:33:37AM +0200, Michael Schnell wrote:
> Is there a kind of "official" way to set aside one of the available
> cores in an SMP system from the Linux OS to do deeply embedded
> extremely-low-latency stuff in a kind of single task "main loop" type
> environment ? I.e. creating a true coprocessor from an SMP hardware.
Before hacking around (which might also lead to interesting solutions),
I would start using a kernel with preempt-rt support and play with the
cpu affinity:
http://lxr.linux.no/#linux+v3.10.4/Documentation/kernel-parameters.txt#L1257
rsc
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next prev parent reply other threads:[~2013-08-02 11:42 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-02 8:33 AMP on an SMP system Michael Schnell
2013-08-02 11:42 ` Robert Schwebel [this message]
2013-08-02 12:13 ` Michael Schnell
2013-08-02 14:53 ` Marco Stornelli
2013-08-02 15:24 ` Michael Schnell
2013-08-02 15:37 ` Marco Stornelli
2013-08-02 16:00 ` Michael Schnell
2013-08-02 15:58 ` Marco Stornelli
2013-08-03 19:11 ` Robert Schwebel
2013-08-05 7:25 ` Michael Schnell
2013-08-05 8:17 ` Robert Schwebel
2013-08-05 9:04 ` Michael Schnell
2013-08-04 21:28 ` Lambrecht Jürgen
2013-08-05 7:36 ` Michael Schnell
2013-08-05 10:00 ` Lambrecht Jürgen
2013-08-07 8:23 ` Michael Schnell
2013-08-07 8:29 ` Michael Schnell
2013-08-07 9:04 ` Michael Schnell
2013-08-08 7:41 ` Michael Schnell
-- strict thread matches above, loose matches on Subject: below --
2013-08-02 16:16 Jon Sevy
2013-08-05 7:45 ` Michael Schnell
2013-08-05 8:21 ` Robert Schwebel
2013-08-05 8:42 ` Michael Schnell
2013-08-05 9:06 Guenter Ebermann
2013-08-05 9:34 ` Michael Schnell
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