SElinux and speed issues

[Tim]

Rob Brown-Bayliss:
>> Hi, some time ago, maybe a year of so I saw a post some where
>> suggesting that disabling selinux would improve the speed of gnome
>> (cant recall weather it was fedora specific or not) and I did and yes
>> things (most notably menus and window opening and closing) were
>> faster...

Daniel J Walsh:
> I think this is a red herring. I can think of no reason why XWindows 
> would run faster with SELinux disabled.  SELinux only effects 
> performance when an Access control decision is being made by the
> kernel.  XWindows should not be going through the kernel for an access 
> check.

I'm not so sure.  Gnome isn't X.  Gnome is an application (or set of
applications).  I'd reckon that it's operation would be subject to
SELinux as much as any others.

I have noticed SELinux be a slowdown on some machines, though it's ages
since I tried that test to remember which things it was obvious with.

-- 
(Currently running FC4, but testing FC5, if that's important.)

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