Subject: Re: 4MB pages?
To: Hubert Feyrer <firstname.lastname@example.org>
From: Jason R Thorpe <email@example.com>
Date: 09/06/2000 07:11:15
On Wed, Sep 06, 2000 at 02:10:05PM +0200, Hubert Feyrer wrote:
> Seeing this jump from few kb pages to few MB pages looks ... interresting.
> What's the background on this?
> Is it intended to make switch pagesize on i386 unconditionally?
No, the i386 port will use a combination of 4K and 4MB pages. The idea is
to use a 4MB page for the kernel text+data+bss to reduce TLB usage for the
kernel, thus improving overall performance.
See the Intel IA32 system programmers reference manual.
-- Jason R. Thorpe <firstname.lastname@example.org>