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Re: [Qemu-devel] [PATCH QEMU] transparent hugepage support

From: Andrea Arcangeli
Subject: Re: [Qemu-devel] [PATCH QEMU] transparent hugepage support
Date: Fri, 12 Mar 2010 19:51:11 +0100

On Fri, Mar 12, 2010 at 06:41:56PM +0000, Paul Brook wrote:
> Doesn't non-PAE (i.e. most 32-bit x86) use 4M huge pages? There's still a 
> good 
> number of those knocking about.

Yep, but 32bit x86 host won't support transparent hugepage (certain
bits overflows in the kernel implementation, there's no more space in
the page struct). It's not worth it IMHO.

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