> -O3 is more optimized than -O2, but those optimizations usually make the > binaries larger which causes other slowdowns. The ideal system-wide > optimization > level is -O2 or -Os (-O2 with additional flags for small binaries). > could you go a little further on this? whats the difference between -O2 and -Os? which is better for overal and what additional flags for small binaries are you talking about?
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