Re: CONFIG_CRITICAL_IRQSOFF_TIMING

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On Sun, 28 Oct 2007, Gerrit Binnenmars wrote:

> Hello,
>
> Can someone send me a .config file that shows the options needed to get the interrupt off
> timing values in preempt_max_latency, please. I only see a value of 0 in this file
> I am using kernel 2.6.22.1 with the corresponding rt patch.
>
> Thanks in advance,

Make sure you have event trace and latency tracing as well as
"Interrupts-off critical section latency timing".

Then you need to echo 0 > /proc/sys/kernel/preempt_max_latency.

-- Steve

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