Re: [Xenomai-core] [RFC, PATCH] per-thread exec-time stats

[Jan Kiszka <jan.kiszka@domain.hid>]

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Jan Kiszka wrote:
> Hi,
> 
> I think to remember people crying for some execution time statistics for quite a
> while now. Here comes a straightforward approach to add this on a per-thread basis.
> The results are printed like this:
> 
> root@domain.hid :/root# cat /proc/xenomai/stat 
> CPU  PID    MSW        CSW        PF    STAT              TIME  NAME
>   0  0      0          7508041    0     01400080     166038894  ROOT
>   0  0      0          2          0     00000082            55  timsPipeReceiver
>   0  1009   751        8800       0     00c00082        143026  display-1008
>   0  1010   0          7514585    0     00c00084      54472477  sampling-1008
> 
> The new TIME column contains the accumulated execution time of each active thread in
> nanoseconds. It's now a job of some user-space tool (shell script?) to pick those

I was thinking of the right unit, I swear:
s/nanoseconds/microseconds/

> numbers up and do, e.g., periodic evaluation (I'm thinking of some "xeno-top"). Any
> volunteer around to hack this? Would be very welcome!
> 
> Jan
> 
> PS: Could someone have a look that I didn't miss an accounting point and my
> acquisition is sound?
> 

Jan


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