Re: [Lse-tech] Re: Hugetlbpages in very large memory machines.......

From: Peter Chubb <>
Date: 2004-03-14 16:22:42
>>>>> "William" == William Lee Irwin, <William> writes:

William> At some point in the past, I wrote:

William> On Sat, Mar 13, 2004 at 05:10:10PM +0100, Andi Kleen wrote:
>> Redesigning the low level TLB fault handling for this would not
>> count as "easily" in my book.

William> I make no estimate of ease of implementation of long mode
William> VHPT support.  The point of the above is that the virtual
William> placement constraint is an artifact of the implementation and
William> not inherent in hardware.

Ther's a patch available to enable long-format VHPT at

We're waiting for 2.7 to open before pushing it in. The long-format
vpht is a prerequisite for other work we're doing on super-pagesand
TLB sharing.

Dr Peter Chubb  peterc AT
The technical we do immediately,  the political takes *forever*
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Received on Sun Mar 14 00:26:21 2004

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