Re: [RFC 1/4] ftrace: Add events for tracing timer interrupts

From: Peter Zijlstra
Date: Wed Sep 08 2010 - 08:38:34 EST


On Wed, 2010-09-08 at 14:29 +0200, Jan Blunck wrote:
> Trace the execution of the timer interrupt. I did not find an argument that
> makes any sense so traces look like this:
>
> <idle>-0 [000] 181019.693546: timerirq_enter: unused=1
> <idle>-0 [000] 181019.693553: timerirq_exit: unused=1

So what's wrong with the normal IRQ enter/exit tracepoints?
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