Message-ID: <384EE9D0.D583BFE3@maths.unine.ch> Date: Thu, 09 Dec 1999 00:29:21 +0100 From: Gautier X-Mailer: Mozilla 4.51 (Macintosh; I; PPC) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.os.msdos.djgpp Subject: Re: fftw give nonsense with float ok with double References: <384e8f71 DOT 5388976 AT news DOT clara DOT net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit NNTP-Posting-Host: mac13-29.unine.ch Lines: 12 To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com > I am wondering in what way does -O2 yield better results than -O3, are > you refering to code size or is there another consideration? Too much inlining might affect processor cache windowing because of code size. It is better (for speed) to tune manually which procedures will be inlined and which not... -- Gautier _____\\________________\_______\_________ http://members.xoom.com/gdemont/gsoft.htm