Linux.com

Maybe you feel confident about your guess because you have no experience and are just making stuff up. Best case scenario, compiler optimizations will get you a minor performance boost, maybe 5% or so. Often this will come along with bugs and instability, as the generated machine code may not be correct. And rebuilding your toolchain with optimizations will not do anything. In theory the most it could do is make your compiler compile faster, not produce faster binaries. But in reality it doesn't even do that. Recompiling it multiple times is simply moronic, this is like believing in magic performance fairies or something equally rediculous, it makes no sense, and anyone who understands even the basics of unix would realize what a dumb idea that is.

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