Re: [PATCH 4/6] trace: Add tracepoints to reschedule interrupthandler

[Peter Zijlstra]

On Fri, 2011-07-15 at 00:02 +0200, Frederic Weisbecker wrote:
> > This is a part of overall effort to trace all the interrupts happening
> > in a system to figure out what time is spent in kernel space versus user
> > space. 

How about you enable CONFIG_IRQ_TIME_ACCOUNTING and get all that?
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