linuxcaffe; distros and desktops

Lennart Sorensen lsorense-1wCw9BSqJbv44Nm34jS7GywD8/FfD2ys at public.gmane.org
Sun Oct 31 13:39:35 UTC 2004


On Sat, Oct 30, 2004 at 03:20:11PM -0400, Noah John Gellner wrote:
> I have been wondering about the differences between -O2 and -O3. I
> typically use -O2, but I am starting to experiment about -O3. For a P4
> 2.4 w/ 684M of RAM, should -O3 be faster?

-O3 is documented as turning on some optimizations that _will_ break
certain code.  Most code will work fine, some code will not work
correctly, or perhaps even at all.  Also for most code, don't expect a
measureable difference.

Lennart Sorensen
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