Subject: Re: UBC and occasional-use apps
To: Perry E. Metzger <>
From: Lars Heidieker <>
List: current-users
Date: 10/27/2001 15:25:22
At 11:09 AM 10/27/2001 -0400, Perry E. Metzger wrote:

>Chuck Silvers <> writes:
> > I've attached an updated and simplified version of lars' patch.
> > we still want to enforce the minimum limits for different type of pages
> > even if we don't reuse non-vnode pages very quickly.
> >
> > could folks please try this out and post your impressions of how effective
> > it is at avoiding the bad behaviour that we currently see?
>One problem is that we still incorrectly account for shared library
>pages as though they were file pages, which results in them getting
>nuked quickly (especially when we are dealing with huge shared libs
>like the ones for mozilla). Simply fixing that bug would be a giant
That was the idea of my patch by using the ref-count from the vnode as it 
is only 1 for fs-cache-only vnodes and higher for others as far as I know....