Date: Sun, 9 Apr 2000 00:51:33 +0100 From: David Malone <dwmalone@maths.tcd.ie> To: "Alexey N. Dokuchaev" <danfe@inet.ssc.nsu.ru> Cc: freebsd-hackers@freebsd.org Subject: Re: What are the best gcc optimization options for Pentium 200 MMX Message-ID: <20000409005133.A86187@walton.maths.tcd.ie> In-Reply-To: <Pine.LNX.4.10.10004082114170.23805-100000@inet.ssc.nsu.ru>; from danfe@inet.ssc.nsu.ru on Sat, Apr 08, 2000 at 09:25:16PM %2B0700 References: <Pine.BSF.4.10.10004080851240.59286-100000@pawn.primelocation.net> <Pine.LNX.4.10.10004082114170.23805-100000@inet.ssc.nsu.ru>
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On Sat, Apr 08, 2000 at 09:25:16PM +0700, Alexey N. Dokuchaev wrote: > I'm trying to achive maximum performance of my FreeBSD 4.0-RELEASE box, > and going to recompile kernel and world using -Os -pipe options. Is there > any additional flags I might consider turning on (like -mfast_math) to > make both kernel and world work at the top performance I can achieve? I thought there was no floating point code in the kernel, and so -mfast-math wouldn't make any difference. I presume Linux doesn't have any FPU code in the kernel either, to save having to save/restore the registers on syscalls? David. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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