[lkml]   [2006]   [Dec]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: PAE/NX without performance drain?
On Sat, 2006-12-09 at 15:39 -0500, John Richard Moser wrote:
> 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
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2006-12-10 10:43    [W:0.062 / U:2.752 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site