[gentoo-performance] Hardened-performance

[gentoo-performance] Hardened-performance

[Florian Philipp]

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Hi list!

Can anyone tell me if using a hardened-profile has any performance
implications?

To be more specific:

I use an AMD64 X2 for realtime video encoding and some network services
and the company I work for uses some of their (Intranet web and
file) servers for high performance computing. Would using stuff like
PaX reduce, for example, memory allocation, memory access and
context switching?

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Re: [gentoo-performance] Hardened-performance

[Florian Philipp]

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On Sun, 13 Jul 2008 13:53:36 +0200
Florian Philipp <lists@f_philipp.fastmail.net> wrote:

> Hi list!
> 
> Can anyone tell me if using a hardened-profile has any performance
> implications?
> 
> To be more specific:
> 
> I use an AMD64 X2 for realtime video encoding and some network
> services and the company I work for uses some of their (Intranet web
> and file) servers for high performance computing. Would using stuff
> like PaX reduce, for example, memory allocation, memory access and
> context switching?

Never mind, just found this myself:
http://www.pjvenda.org/linux/doc/pax-performance/

Quote:"AMD64, PPC64, Alpha and other architectures benefit with PaX's
PAGEEXEC memory protection at no cost whatsoever!"

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