Re: Some thoughts about cache and swap

From: John Bradford
Date: Sun Jun 06 2004 - 02:02:16 EST


Quote from Rik van Riel <riel@xxxxxxxxxx>:
> On Sat, 5 Jun 2004, [UTF-8] Lasse K=C3=A4rkk=C3=A4inen / Tronic wrote:
>
> > In order to make better use of the limited cache space, the following
> > methods could be used:
>
> [snip magic piled on more magic]
>
> I wonder if we should just bite the bullet and implement
> LIRS, ARC or CART for Linux. These replacement algorithms
> should pretty much detect by themselves which pages are
> being used again (within a reasonable time) and which pages
> aren't.

Is the current system really bad enough to make it worthwhile, though?

Is there really much performance to be gained from tuning the 'limited' cache
space, or will it just hurt as many or more systems than it helps?

John.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/