Re: Status of -rt for linux-2.6.20/arch/powerpc

[Wolfgang Grandegger <wg@grandegger.com>]

Robert Schwebel wrote:
> On Sun, Feb 11, 2007 at 01:39:44PM +0100, Wolfgang Grandegger wrote:
>>> We have 2.6.20-rt3 running on the phyCORE-MPC5200B, so that one should
>>> work and the merge problems did probably come in later (don't have the
>>> time to look right now because of the Embedded World activities for next
>>> week).
>> As I see it, 2.6.20-rt3 has the same issues (have now attached the 
>> missing make output). I fixed them manually and are now able to boot and 
>> run the 2.6.20-rt5 on my Icecube board. Nevertheless, cyclictest returns 
>> high values of around 8000-10000 (8-10ms). The fact that the unknown 
>> field 'is_continuous' in arch/powerpc/kernel/time.c is still present 
>> gives me the impression, that the code in there is not up-to-date. See 
>> you next week on the Embedded World.
> 
> I have uploaded the latest results to this place:
> 
> http://www.pengutronix.de/oselas/realtime/results/20070211-1/phyCORE-MPC5200B-tiny-20070211-1.png
> 
> Note that this is still no waterproof measurement, with 100k data
> points and only ad-hoc stressing. We'll do more testing after the
> tradeshow.
 >
> The 2.6.20-rt3 is a little bit patched, but I don't have the time right
> now to dig into the details. We can discuss it on the Embedded World
> next week, I'll take the patch stack with me.

OK, great, thanks.

See you next week.

Wolfgang.