Re: uninteruptable sleep (D state => load_avrg++)

[christophe barbe <christophe.barbe@lineo.fr>]

<skip>
I've unfortunately no significant Unix culture. 
I'm certainly young enough to be excused and by luck Linux shows me the road to the hacker heaven.
So now I move forward the good direction, trying to understand the POSIX stuff ....
</skip>

>From me, a POV without technical reasons is not a philosical one but more certainly an historical one.

Process that will be runnable are not participating to the load so why incrementing the load average.
Moreover if a process should be in state D only for a short time, the influence of the incrementation should be near null for an AVERAGE value.
So why doing that (I mean load++) if there's an influence only when a process stay in a D state for a long time (= when the only effect is to distort the load measure) ?

What's the technical reason behind this load_avrg++ ???

Christophe


On mer, 04 avr 2001 16:20:04 Paul Jakma wrote:
> On Wed, 4 Apr 2001, christophe barbe wrote:
> 
> > The sleep should certainly be interruptible and I that's what I
> > said to the GFS guy. But what the reason to increment the load
> > average for each D process ?
> 
> from a philosical POV: they are processes that will be runnable as
> soon as the kernel returns to them.
> 
> no idea if there are technical reasons for it.
> 
> >
> > Thanks,
> > Christophe
> 
> --paulj
> 
-- 
Christophe Barbé
Software Engineer
Lineo High Availability Group
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