From: Carsten Emde <C.Emde@osadl.org>
To: Wolfgang Wallner <Wolfgang.Wallner@br-automation.com>
Cc: linux-rt-users@vger.kernel.org
Subject: Re: Configuration of real-time tasks in PREEMPT_RT kernels > 2.6.33
Date: Tue, 27 Aug 2013 23:12:13 +0200 [thread overview]
Message-ID: <521D162D.3030301@osadl.org> (raw)
In-Reply-To: <OF6C5E1E92.67FE0167-ONC1257BD3.0043D8B2-C1257BD3.00448947@br-automation.com>
Wolfgang,
> I know that in 2.6.33 there were splitted softirqs, and that it was possible to configure each thread with its own priority.
> What are the steps that need to be done in 3.x to achieve similar results as in 2.6.33?
The full story is here -> https://www.osadl.org/?id=930. Among others,
it says "Thomas Gleixner found the most elegant solution that directly
runs the network task in the context of the IRQ thread of the related
device and, thus, implicitly adopts its priority." BTW: Thomas did this
work when he ported RT to kernel version 3.6, Sebastian posted his
backport to 3.2 and 3.4 half a year ago. The missed softirq split is
history.
-Carsten.
next prev parent reply other threads:[~2013-08-27 21:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-26 12:28 Configuration of real-time tasks in PREEMPT_RT kernels > 2.6.33 Wolfgang Wallner
2013-08-27 6:17 ` SV: " Simon Falsig
2013-08-27 9:50 ` Jeremy Jongepier
2013-08-27 21:12 ` Carsten Emde [this message]
2013-08-29 7:57 ` Wolfgang Wallner
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