Get local CPU id

Nicholas Krause xerofoify at gmail.com
Sun Mar 8 18:03:32 EDT 2015



On March 8, 2015 5:49:00 PM EDT, Maxime Ripard <maxime.ripard at free-electrons.com> wrote:
>On Sun, Mar 08, 2015 at 10:06:23PM +0300, Matwey V. Kornilov wrote:
>> Hi,
>> 
>> I would like to somehow obtain local CPU core ID in the interrupt
>> handler function. I want to see how my interruptions are distributed
>> among different CPU cores under different conditions.
>> 
>> How should I do that?
>
>To answer strictly your question, like Nick said, smp_processor_id()
>will work fine.
>
>However, you can do exactly what you want be reading /proc/interrupts,
>that already provide the informations you are looking for.
>
>Maxime
Good point, 
I totally forgot about that file in the proc
directory. ☺ That was my fault. 
Nick 

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