[LAU] rtirq - what does it improve, and how can I measure it?
ralf.mardorf at alice-dsl.net
Tue May 8 10:14:39 UTC 2012
On Mon, 2012-05-07 at 14:54 +0200, Robin Gareus wrote:
> With linux >= 3.0 and the preemt-RT patch, you don't need the
> 'threadirq' option with CONFIG_FORCE_THREADIRQ=y:
So when I build a kernel-rt ex 3.0 from kernel.org source I need to use
boot option threadirqs, if it isn't patched?
On AV Linux I run the 3.0.23-avl-7-pae with and the self-build
3.0.23-rt40 without threadirqs. This way there's no difference between
those kernels. I can't make music using JACK1 (didn't test JACK2 until
now with AV Linux).
But at least kernel-rt < 2.6.39 are ok without threadirqs ;)?
But CONFIG_IRQ_FORCED_THREADING has to be set for a kernel-rt too?
spinymouse at precise:~$ grep FORCE /media/avlinux/boot/config-3.0.23-rt40
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