Re: i686 SMP systems with more then 12 GB ram with 2.4.x kernel ?
Rik van Riel (riel@conectiva.com.br)
Thu, 3 Jan 2002 14:38:55 -0200 (BRST)
On Thu, 3 Jan 2002, Stephan von Krawczynski wrote:
> On Thu, 3 Jan 2002 11:28:45 -0200 (BRST)
> Rik van Riel <riel@conectiva.com.br> wrote:
>
> > Another item to look into is removing the page cache hash table
> > and replacing it by a radix tree or hash trie, in the hopes of
> > improving scalability while at the same time saving some space.
>
> Ah, didn't we see such a patch lately in LKML? If I remember correct I
> saw some comparison charts too and some people testing it were happy
> with it. Just searched through the list: 24. dec :-) by Momchil
> Velikov Can someone with big mem have a look at the saving? How about
> 18-pre?
and looking at further improvements.
One thing to keep in mind is that most pages are in the
page cache; we wouldn't want to reduce space in one data
structure just to use more space elsewhere, this is
something to look at very carefully...
regards,
Rik
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