Date: Mon, 14 Nov 2005 23:38:56 +0000 From: Chris <chris@childeric.freeserve.co.uk> To: freebsd-questions@freebsd.org Subject: Re: Makefile and Kernel Optimizations in 6.0 Message-ID: <43792010.9010802@childeric.freeserve.co.uk> In-Reply-To: <20051114202300.GB98749@xor.obsecurity.org> References: <20051114102308.7515.GERARD@seibercom.net> <20051114202300.GB98749@xor.obsecurity.org>
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Kris Kennaway wrote: > P.S. -funroll-loops and -ffast-math are commonly used by people who > don't understand what they mean but like the thrill it gives them to > compile their application with secret optimizations (e.g. the word > "fast" makes them feel excited). However, the former is often not > actually an optimization (which is why it's not on by default), and > the latter can cause incorrect computations (but I think it's > completely irrelevant in the kernel which does not do FP math). Just out of curiosity, what would people who know what they are doing use them for? -funroll-loops sounds like an amusement park :P Chris
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