Device Interrupt Handler CPU Load Anaysis Method.

[Sebastian Huber]

On 12/01/18 02:38, Thomas Kim wrote:
> Dear Sir,
>
> As I checked until now, thread(task, pthread) cpu load analysis method 
> using "cpuuse" is perfect !
>
> At this time, I am doing multiple device interrupt hander stress 
> testing. but, there is not CPU load anaysis method about multiple 
> device interrupt handler.
>
> Is there any method for checking CPU load about multiple device 
> interrupt handlers ?

The is limited support for this. You can try to use enable the profiling 
option:

cpukit/sapi/include/rtems/profiling.h

For interrupt profiling a BSP support is necessary. I think it is only 
implemented on ARM, PowerPC and SPARC currently.

The RTEMS trace linker is also an option.

-- 
Sebastian Huber, embedded brains GmbH

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