Re: Slightly newer airport sleep bits for pmud
On Thu, Jun 28, 2001 at 04:56:06PM +0200, Michel D?nzer wrote:
> Peter Cordes wrote:
> >
> > On Thu, Jun 21, 2001 at 11:22:18AM +0200, Michel D?nzer wrote:
> > > > Er, if the kernel autoprobes them, modprobe gets called with -k, which
> > > > means that among other things, when it's not been in use it can be
> > > > "autocleaned", ie rmmod -a'ing twice in some time frame will remove it.
> > >
> > > Thanks, can you please elaborate on the time frame? :)
> >
> > I thought the "time" frame was just that the module hadn't been used
> > again since the last rmmod -a. This is like a second-chance paging
> > algorithm that pages out pages that haven't been used between runs of
> > the page-marker. (I think this is how it works, and that there's no
> > wall-clock time involved here.)
>
> Okay, so what would be a good tradeoff between having unused modules removed
> automatically and not cluttering the log too much?
Most people don't bother ever unloading modules. It's not like they
use up a lot of memory, either. On an old system like my laptop with
only 20MB of RAM, unloading modules that aren't in use could make a
difference. If you've got 64MB or more, then it's not worth it unless
you very occasionally use some big modules.
If you do want to autoclean your modules, use cron to run rmmod -a.
Otherwise, leave things the way they are.
--
#define X(x,y) x##y
Peter Cordes ; e-mail: X(peter@llama.nslug. , ns.ca)
"The gods confound the man who first found out how to distinguish the hours!
Confound him, too, who in this place set up a sundial, to cut and hack
my day so wretchedly into small pieces!" -- Plautus, 200 BCE
Reply to: