How is run queue length computed in linux proc filesystem

[emani murali]

Exactly, I would like to know how is runq computed from load average. Are
there any system calls to get this value.

Cheers,
Kris

On 16 August 2013 14:46, <Valdis.Kletnieks at vt.edu> wrote:

> On Fri, 16 Aug 2013 14:20:29 +0100, emani murali said:
>
> > I'm trying to obtain number of runnable processes from linux kernel.
>
> Why are you trying to get that number, and how important is accuracy?
> (Remember that the value of that number can change literally several
> tens of thousands of times per second).
>
> > The wiki page http://en.wikipedia.org/wiki/Load_(computing) provides
> some
> > insight into how run queue length is computed based on ldavg values but
> it
> > is unclear. Can someone provide more pointers on this. Cheers
>
> Actually, you have that backwards.  Load average is computed based on run
> queue
> length.
>



-- 
Thanks,
Murali Krishna Emani
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