On 04/22/2012 03:53 PM, Wolfgang Grandegger wrote:
> On 04/22/2012 01:34 PM, Gilles Chanteperdrix wrote:
>> On 04/22/2012 01:24 PM, Gilles Chanteperdrix wrote:
>>> On 04/22/2012 11:10 AM, Wolfgang Grandegger wrote:
>>>> But all this does not explain a factor of 3 with your driver. I doubt
>>>> that it's due to a move from 2.6.29 -> 2.6.32. Try using ftrace to find
>>>> out what's going on (if it's already available).
>>>
>>> Threaded interrupts were introduced around this time. And threaded
>>> interrupts DO have a significant impact on latencies.
>
> Yes, but thread interrupts are normally not enabled/used by default. I'm
> not speaking about CONFIG_PREEMPT_RT. Well, do we speak about latencies?
> He just said "reading an ADC on an EP9312 ARM board has slowed by a
> factor of three". I'm not even sure if it's related to Xenomai at all.
> xenophile (&$#^?) , could you please be more precise.
Yes, without answers to these questions, xenophile's post looks a lot
like a troll attempt.
--
Gilles.
_______________________________________________
Xenomai-help mailing list
Xenomai-help@gna.org
https://mail.gna.org/listinfo/xenomai-help
