Reducing compilation memory usage

John (Eljay) Love-Jensen
Fri Jan 18 06:20:00 GMT 2008

Hi Alejandro,

> The strange thing is that when looking at options enabled at different
-O levels (trying to remove the ones that were using more memory),
ended up with a GCC 4.2.3 command-line that specified exactly all the
options enabled by -O2 (as listed in the manpage), and built. But ran
at the same speed as without them.

Which -O# level were you using in conjunction with the specified -f?

Keep in mind, that at -O0, all optimizations are disabled, and the -f to enable a particular optimization have no effect since all optimizations are disabled.


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