Re: [highmem bug report against -test5 and -test6] Re: [PATCH] Re: simple FS application that hangs 2.4-test5, mem mgmt problem or FS buffer cache mgmt problem? (fwd)

[Rik van Riel <riel@conectiva.com.br>]

On Mon, 2 Oct 2000, Linus Torvalds wrote:

> So if we have "lots" of memory, we basically optimize for speed
> (leave the cached mapping around), while if we get low on memory
> we automatically optimize for space (get rid of bh's when we
> don't know that we'll need them).

OK, so we want something like the following in
refill_inactive_scan() ?

if (free_shortage() && inactive_shortage() && page->mapping &&
			page->buffers)
	try_to_free_buffers(page, 0);

This would keep the buffer heads around in the background page
scans too and only free them when we really need to.

(but still, I'm not sure if this is agressive enough or not
quite agressive enough)

regards,

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

http://www.conectiva.com/		http://www.surriel.com/

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