Re: [BK PATCH 2.5] Introduce 64-bit versions of PAGE_{CACHE_,}{MASK,ALIGN}

From: Rik van Riel (riel@conectiva.com.br)
Date: Tue Jul 30 2002 - 09:06:37 EST

Next message: Abraham vd Merwe: "questions about network device drivers"
Previous message: Jeff Garzik: "Re: [PATCH] eepro 0.13a"
In reply to: Andi Kleen: "Re: [BK PATCH 2.5] Introduce 64-bit versions of PAGE_{CACHE_,}{MASK,ALIGN}"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

On 30 Jul 2002, Andi Kleen wrote:
> Andrea Arcangeli <andrea@suse.de> writes:
>
> > > Then again, Andi says that sizeof(struct page) is a problem for
> > > x86-64.
> >
> > not true.
>
> x86-64 has slightly below 100 bytes struct page

We really need to look at replacing the page pointers with
page frame numbers and packing the 32-bit variables together
to save some memory on 64-bit architectures.

Rik

-- http://www.linuxsymposium.org/2002/ "You're one of those condescending OLS attendants" "Here's a nickle kid. Go buy yourself a real t-shirt"

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

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

Next message: Abraham vd Merwe: "questions about network device drivers"
Previous message: Jeff Garzik: "Re: [PATCH] eepro 0.13a"
In reply to: Andi Kleen: "Re: [BK PATCH 2.5] Introduce 64-bit versions of PAGE_{CACHE_,}{MASK,ALIGN}"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

This archive was generated by hypermail 2b29 : Tue Jul 30 2002 - 14:00:36 EST