From: Tim Sander <tim@krieglstein.org>
To: ptxdist@pengutronix.de
Subject: Re: [ptxdist] Patch Kernet with preempt_rt patch
Date: Wed, 27 Mar 2013 08:24:21 +0100 [thread overview]
Message-ID: <5093873.psrJHpX9u8@dabox> (raw)
In-Reply-To: <20130326235616.GF1366@pengutronix.de>
Hi
Am Mittwoch, 27. März 2013, 00:56:16 schrieb Robert Schwebel:
> On Tue, Mar 26, 2013 at 02:40:01PM +0100, "Breixo López García" wrote:
> > I will patch the kernel for phyCPRE-AM335x with PREEMPT kernel 3.2, for
> > this I use ptxdist. the patch from the kernel comes from
> > https://www.kernel.org/pub/ linux/kernel/projects/rt/3.2/.
There is a complete repository for the beaglebone from me with some arago
patches merged: https://gitorious.org/ptxdist-beaglebone/ptxdist-beaglebone
> Note that AM335x is in the meantime relatively well supported in 3.8,
> and we have 3.8-rt since a few days. Our first tests this week show
> pretty good realtime results so far.
I have tested with 3.2.32-rt51 and when floodpinging the latency in a kernel
driver(! not even usermode) was in the range of milliseconds? Have you tested
flood pinging with the newer kernel?
> Do you have a special reason why you want to use this prehistoric
> kernel?
Well, the Ti Arago project is still on this kernel? But at least they are
mainlining... Also i just tested a newer kernel on the beaglebone and it just
switched itself off on booting? So would you mind sharing your kernelconfig,
probably i was missing a driver for the power sequencer?
Best regards
Tim
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next prev parent reply other threads:[~2013-03-27 7:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-26 13:40 "Breixo López García"
2013-03-26 13:52 ` Bernhard Walle
2013-03-26 14:02 ` "Breixo López García"
2013-03-26 23:56 ` Robert Schwebel
2013-03-27 7:24 ` Tim Sander [this message]
2013-03-27 8:13 ` Robert Schwebel
2013-03-28 8:31 ` [ptxdist] am335x latency Tim Sander
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