Support for Intel 4MB Pages

Support for Intel 4MB Pages

[Justin Michael LaPre]

beneficial to use 4MB pages.  Some people on IRC suggested the community
might appreciate such a patch.  Would this be well-accepted?  Designing it
to be general instead of just for our purposes would be more difficult,
but we would be willing to put in the time if people actually want it.
	If it were to be implemented, what would be the best strategy?  A
new memory zone?  Re-working the mm system to try and not break up chunks
of 4MB if possible?  Any comments would be greatly appreciated.  Thanks.

-Justin

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/

Re: Support for Intel 4MB Pages

[Timur Tabi]

I thought Linux already used 4MB pages for its 1-to-1 kernel virtual
memory mapping.

Justin Michael LaPre wrote:

 > beneficial to use 4MB pages.  Some people on IRC suggested the community
 > might appreciate such a patch.  Would this be well-accepted? 
Designing it
 > to be general instead of just for our purposes would be more difficult,
 > but we would be willing to put in the time if people actually want it.
 > 	If it were to be implemented, what would be the best strategy?  A
 > new memory zone?  Re-working the mm system to try and not break up chunks
 > of 4MB if possible?  Any comments would be greatly appreciated.  Thanks.
 >
 > -Justin
 >
 > --
 > To unsubscribe, send a message with 'unsubscribe linux-mm' in
 > the body to majordomo@kvack.org.  For more info on Linux MM,
 > see: http://www.linux-mm.org/
 >
 >
 >
 >



-- 
Timur Tabi
Interactive Silicon


--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/

Re: Support for Intel 4MB Pages

[Christoph Hellwig]

On Fri, Jul 20, 2001 at 01:32:20PM -0500, Timur Tabi wrote:
> I thought Linux already used 4MB pages for its 1-to-1 kernel virtual
> memory mapping.

Yes.   But this is only _wierd_ kernel memory, not general-purpose
memory.

	Christoph

-- 
Whip me.  Beat me.  Make me maintain AIX.
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/

Re: Support for Intel 4MB Pages

[Kanoj Sarcar]

I did some initial work on this previously. Some of
it is stored at

 http://reality.sgi.com/kanoj_engr/lpage.html

David Miller also tried out certain things to do with
large pages.

Kanoj

--- Christoph Hellwig <hch@ns.caldera.de> wrote:
> On Fri, Jul 20, 2001 at 01:32:20PM -0500, Timur Tabi
> wrote:
> > I thought Linux already used 4MB pages for its
> 1-to-1 kernel virtual
> > memory mapping.
> 
> Yes.   But this is only _wierd_ kernel memory, not
> general-purpose
> memory.
> 
> 	Christoph
> 
> -- 
> Whip me.  Beat me.  Make me maintain AIX.
> --
> To unsubscribe, send a message with 'unsubscribe
> linux-mm' in
> the body to majordomo@kvack.org.  For more info on
> Linux MM,
> see: http://www.linux-mm.org/


__________________________________________________
Do You Yahoo!?
Get personalized email addresses from Yahoo! Mail
http://personal.mail.yahoo.com/
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/