Re: [patch] my latest oom stuff
Kurt Garloff (garloff@kg1.ping.de)
Mon, 26 Oct 1998 23:26:57 +0100
On Mon, Oct 26, 1998 at 01:40:49PM +1100, Richard Gooch wrote:
> > unsigned long start = jiffies;
> >
> > do {
> > .. swapout ..
> > } while (jiffies == start);
> >
> > which essentially throttles kswapd to run at most one jiffy (and that in
> > turn pretty much guarantees that kswapd at MOST can ever run 50% of the
> > time, which is pretty close to the kind of guarantee we want).
>
> I don't understand how you get the 50% number. If the above snippet is
> in a function, the first time I call the function it runs for one
> jiffie. Next time I call it (a fraction of a jiffie later), it runs
> for almost one jiffie. Is there some other subtlety I'm missing?
current->state = TASK_INTERRUPTIBLE;
schedule();
Is this explaining the thing?
--
Kurt Garloff <K.Garloff@ping.de> (Dortmund, FRG)
PGP key on http://student.physik.uni-dortmund.de/homepages/garloff
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