From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Mon, 25 Feb 2008 09:14:43 +0100
From: Jan Kiszka <jan.kiszka@domain.hid>
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Subject: Re: [Xenomai-help] Non RT PCI device driver vs interrupts (go with
 rtdm...)
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To: Hubert Talbot <Hubert.Talbot@domain.hid>
Cc: xenomai@xenomai.org

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Hubert Talbot wrote:
> Finally, I got the precision I expected. The problem was on the way the=
 results were reported.
>=20
> However, more the frequency of the pulse generator is raised, less the =
results are good.
>=20
> I think it is time to go with rtdm...

RTDM is no magic bullet /wrt latency or jitter. You should try to=20
understand what you are measuring first before blindly replacing=20
something. I'm surely not saying porting to RTDM is a bad idea, but I=20
may not help you with what you are actually looking for.

What do you mean with "less good"? What frequencies are we talking=20
about? What is the critical code path (already considered to use some=20
tracing tool for analysis?)?

Jan


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