Re: Fairness in love and swapping

["Dr. Werner Fink" <werner@suse.de>]

> >> "swapping" (as opposed to paging) is becoming a required
> >> strategy
> 
> > In other words: the pages swapped in or cached into the swap cache
> > should get their initial age which its self is calculated out of the
> > current priority of the corresponding process?
> 
> No, the idea is that we stop paging one or more processes altogether
> and suspend them for a while, flushing their entire resident set out
> to disk for the duration.  It's something very valuable when you are
> running big concurrent batch jobs, and essentially moves the fairness
> problem out of the memory space and into the scheduler, where we _can_
> make a reasonable stab at being fair.

Ohmm ... yes, but it's a pity because the diagrams of Roger took an old idea
of mine back into my mind :)  The idea was simply to give a process an
advantage over the others within its time slice by simply makeing
touch_page(), age_page(), and a new inline intial_age() depending on the
amount of the process time slice.


            Werner