Re: -O2 vs -O3

From: Andreas Schwab (
Date: Wed May 24 2000 - 13:55:05 EST

Christopher Thompson <> writes:

|> Brief question:
|> Linux kernels are compiled with the -O2 flag set. I'm curious, why don't we
|> use -O3?

Because the only difference between -O2 and -O3 is -finline-functions,
which is bad for the kernel sources (which wants to control inlining


Andreas Schwab                                  "And now for something
SuSE Labs                                        completely different."
SuSE GmbH, Schanzäckerstr. 10, D-90443 Nürnberg

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