Re: TRACE_EVENT() declarations belong to include/trace/

From: Anton Blanchard
Date: Mon Apr 12 2010 - 19:25:33 EST



Hi Frederic,

> If this is to trace all irqs, then it seems to me the wrong way.
> We already have generic irq_handler_entry and irq_handler_exit trace events.
>
> May be those in powerpc are here to get the spurious irqs by computing
> a diff between generic and arch irq events? In which case
> it would be better to get dedicated spurious irq tracepoints.

The number of spurious irqs are not interesting - we track them in
/proc/interrupts. The duration of the disturbances are, and they were big
enough for people to see them in certain HPC loops.

Anton
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