* [Xenomai-help] Pentium III performances
@ 2008-12-18 15:02 stefano.franzoni
2008-12-18 15:10 ` Gilles Chanteperdrix
0 siblings, 1 reply; 2+ messages in thread
From: stefano.franzoni @ 2008-12-18 15:02 UTC (permalink / raw)
To: xenomai@xenomai.org
Dear experts
we have a systems with Ubuntu Linux 2.6.25.11 and Xenomai 2.4.4.
The system has a Pentium III (Coppermine) 1GHz.
The Xenomai installation seems to be ok.
I generate a periodic event based on a ISA irq every 2 msec. and also seems
to be right.
When we generate events in the human interface (open windows, ecc..) we
don't respect the deadline of 2 msec.
Pentium III is an obsolete system but we are wondering if this loose
performances depends on it.
It would be useful to know if this is a supported hardware and if is known
the related maximum IRQ latency and the maximun IRQ jitter.
Thanks in advance
Stefano
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [Xenomai-help] Pentium III performances
2008-12-18 15:02 [Xenomai-help] Pentium III performances stefano.franzoni
@ 2008-12-18 15:10 ` Gilles Chanteperdrix
0 siblings, 0 replies; 2+ messages in thread
From: Gilles Chanteperdrix @ 2008-12-18 15:10 UTC (permalink / raw)
To: stefano.franzoni; +Cc: xenomai@xenomai.org
stefano.franzoni@domain.hid wrote:
> Dear experts
>
> we have a systems with Ubuntu Linux 2.6.25.11 and Xenomai 2.4.4.
> The system has a Pentium III (Coppermine) 1GHz.
> The Xenomai installation seems to be ok.
>
> I generate a periodic event based on a ISA irq every 2 msec. and also seems
> to be right.
> When we generate events in the human interface (open windows, ecc..) we
> don't respect the deadline of 2 msec.
see TROUBLESHOOTING.
>
> Pentium III is an obsolete system but we are wondering if this loose
> performances depends on it.
> It would be useful to know if this is a supported hardware and if is known
> the related maximum IRQ latency and the maximun IRQ jitter.
run latency, while stressing the system.
--
Gilles.
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2008-12-18 15:02 [Xenomai-help] Pentium III performances stefano.franzoni
2008-12-18 15:10 ` Gilles Chanteperdrix
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