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From: "M. Koehrer" <mathias_koehrer@arcor.de>
To: sjt.kar@gmail.com, mathias_koehrer@arcor.de,
	linux-rt-users@vger.kernel.org
Subject: Re: Re: Re: Ethernet communication from real time thread
Date: Thu, 30 Apr 2009 13:17:30 +0200 (CEST)	[thread overview]
Message-ID: <438094.1241090250891.JavaMail.ngmail@webmail11.arcor-online.net> (raw)
In-Reply-To: <921ca19c0904300404x5193a9d0s1c52c688826d7912@mail.gmail.com>

Hi Sujit,

now I got your point!
I think I did not tell it clearly:
I want to replace a running Xenomai/RTNET approach by completely
using the RT_PREEMPT patch. I do not want to do any mix of Xenomai and RT_PREEMPT.
The target is to have a RT_PREEMPT only system that performs similar to the Xenomai/rtnet
approach.

Sorry for any confusion here...

Thus, the concrete question (in short) is:
- Which (user/kernel) threads (prio, affinity) are relevant for using Ethernet (UDP/IP) communication
with the RT_PREEMPT patch.

> I think you have a point it certainly needs to be checked whether
> the RT_PREEMPT patch behaves with an package like Xenomai.
> My initial reaction is just that in the case of Xenomai, it just applies
> an Hard Real time constraint on the RT_PREEMPT patch.
> 
> But it is certainly much better to investigate what happens when we
> have an Xenomai like RT System behave otherwise. Does it change
> the RT_PREEMPT patch.
> 

Regards

Mathias

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Mathias Koehrer
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  parent reply	other threads:[~2009-04-30 11:17 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-30  7:00 Ethernet communication from real time thread M. Koehrer
2009-04-30  9:29 ` Sujit Karataparambil
2009-04-30 10:41 ` M. Koehrer
2009-04-30 11:04   ` Sujit Karataparambil
2009-04-30 11:17   ` M. Koehrer [this message]
2009-04-30 11:35     ` Sujit Karataparambil
2009-04-30 23:14 ` Stefan Agner
2009-05-27  7:39   ` How to change the ISR kthread priority in 2.6.26 series Suresh Kumar SHUKLA
2009-05-27 18:55     ` Remy Bohmer

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