Re: Odd swap behavior

Rik van Riel
2000-10-04T15:14:07Z

On Tue, 3 Oct 2000, Rajagopal Ananthanarayanan wrote:

> I'm running fairly stressful tests like dbench with lots of
> clients. Since the new VM changes (now in test9), I haven't
> noticed _any_ swap activity, in spite of the enormous memory
> pressures. I have lots of processes in the system, like 8
> httpd's, 4 getty's, etc. most of which should be "idle" ... Why
> aren't the pages (eg. mapped stacks) from these processes being
> swapped out?

That's an interesting one. Most "complaints" I've had about
test9 is that it swaps more than previous versions ;)

But let me give you the answer...

Small code changes in deactivate_page() have caused the
drop_behind() code to actually WORK AS ADVERTISED right
now, and because of that streaming IO doesn't put any
memory pressure on the system.

regards,

Rik
--
"What you're running that piece of shit Gnome?!?!"
-- Miguel de Icaza, UKUUG 2000

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