On Sun, 2009-02-08 at 12:40 +0100, Martijn van Oosterhout wrote: > On Sat, Feb 7, 2009 at 11:09 PM, Ceriel Jacobs <[email protected]> wrote: > > In building and benchmarking open source projects on Mac OS X 10.5 > > intel (for example Mysql), > > highest performance was returned with flag -fast instead of -O2. > > What does -fast do? I can't find it in the gcc manpage.
It is an option added by Apple. It looks like it is not much more than a custom set of "-f..." flags which they've developed to generate better code on the PowerPC CPUs. http://developer.apple.com/ReleaseNotes/DeveloperTools/RN-GCC3/index.html#//apple_ref/doc/uid/TP40001007-DontLinkElementID_17 Jon _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
