Re: [glob2-devel] Alpha 22 Released

[Bradley Arsenault]

On 4/4/07, Kai Antweiler <address@hidden> wrote:
> I think "-O3" isn't much better than "-O2".
> We could use "-ffast-math" for PerlinNoise.cpp.

I have measured this, automated inlining makes allot of difference,
especially in my newer Echo code, where the interface wasn't designed
arround low overheads.


> With "-g -O2" users can make backtraces without having to compile glob2
> at all.
> We could measure speed, to see if it is worth it.

I have. It does make a difference. To the CPU starved end user, it
would make quite a bit of difference.

> "-O3" in HEAD is bad.  It increases compilation time considerably
> without much speed improvements.  Given the frequency of compilation
> this is no good.

Thats why -O3 isn't used in head. You compile with ./configure
CXXFLAGS="whatever u want".

> I like "-Wall".
>
> --
> Kai Antweiler
>
>
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--
Really. I'm not lieing. Bradley Arsenault.