[linux-audio-dev] oprofile, redhat and CONFIG_PREEMPT

[Michael Ost]

Hi, all.

We want to run oprofile on our redhat 8 based system. It looks like
great technology, but an oprofile FAQ says it doesn't work on redhat 8
systems. 

The FAQ recommends downloading a redhat's oprofile rpm, which we did.
But that is configured not to work with a CONFIG_PREEMPT kernel. Our
kernel is CONFIG_PREEMPT patched for increased audio performance.

Yikes!

Has anyone run in to this problem and found a clever solution? An
alternate profiler that works? Will we get meaningful results if we
rebuild the kernel with CONFIG_PREEMPT turned off? Or perhaps we can run
it with CONFIG_PREEMPT on and see what happens?

Cheers...

===================================
Michael Ost, Software Architect
Muse Research, Inc.
most at museresearch.com  mo