Re: [Lse-tech] Re: 10.31 second kernel compile

Rik van Riel
2002-03-18T00:53:48Z

On Sun, 17 Mar 2002, Davide Libenzi wrote:
> On Sun, 17 Mar 2002, Linus Torvalds wrote:
>
> > In article <Pine.LNX.4.44L.0203171021090.2181-100000@imladris.surriel.com>,
> > Rik van Riel <riel@conectiva.com.br> wrote:
> > >
> > >In other words, large pages should be a "special hack" for
> > >special applications, like Oracle and maybe some scientific
> > >calculations ?
> >
> > Yes, I think so.

> Couldn't we choose the page size depending on the map size ?

For on-disk files I guess this is better an mmap flag,
but for shared memory segments we could try to do this
automagically.

> If we start mixing page sizes, what about kernel code that assumes
> PAGE_SIZE ?

We fix it.

Rik
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