lkml.org 
[lkml]   [2006]   [Dec]   [10]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: PAE/NX without performance drain?
FromArjan van de Ven <>
DateSun, 10 Dec 2006 10:37:57 +0100
On Sat, 2006-12-09 at 15:39 -0500, John Richard Moser wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Apparently (as I've been told today) using a hardware NX bit in a 32-bit
> x86 kernel requires PAE mode.  PAE mode is enabled with HIGHMEM64, which
> is (apparently) extremely slow.


it's not extremely slow. 

there is a minor performance delta, sure, but to be honest that's a
benchmark thing more than a real life thing.

What did your measurements show that the slowdown was? And how did you
measure this?



-
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/

\
 
 \ /
  Last update: 2006-12-10 09:43    [from the cache]
©2003-2008