Messages in this thread | | | Date | Mon, 9 Nov 1998 22:03:01 -0500 (EST) | From | Tom Vier <> | Subject | Re: A patch for linux 2.1.127 |
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> It is not a good idea to compile the kernel with -O6. -O6 includes > -finline-functions, and automatic inlining messes up a lot of fast > paths (mainly because egcs is not able to do register life splitting > yet)
i thought -O3 turned on inline functions? is egcs different than gcc, in that respect?
gcc man page: -O3 Optimize yet more. This turns on everything -O2 does, along with also turning on -finline-func- tions.
<snipped example code>
> So just use -O2 instead of -O6.
just curious; i heard that freebsd always defaults to -O3 for their kernel. is this cuz they code their kernel different, taking -finline-functions into account, or cuz they just like to throw the highest opt level on it?
-- Tom Vier - 0x82B007A8 nester@sekurity.org | goto the Zero Page at: Tortured Souls Software | http://www.erols.com/thomassr/zero/
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