Date: 04 Nov 2002 22:15:18 -0600 From: James McNaughton <jtm63@enteract.com> To: Kris Kennaway <kris@obsecurity.org> Cc: Lowell Gilbert <freebsd-questions-local@be-well.no-ip.com>, Walter <walterk1@earthlink.net>, "freebsd-questions@FreeBSD.org" <freebsd-questions@FreeBSD.ORG> Subject: Re: kernel optimization Message-ID: <86u1iwmz3d.fsf@jamestown.21stcentury.net> In-Reply-To: <20021024213548.GA54124@xor.obsecurity.org> References: <3DB80AF6.4559ED25@earthlink.net> <44bs5j24kb.fsf@be-well.ilk.org> <20021024213548.GA54124@xor.obsecurity.org>
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Kris Kennaway <kris@obsecurity.org> writes: > On Thu, Oct 24, 2002 at 12:18:44PM -0400, Lowell Gilbert wrote: > > Walter <walterk1@earthlink.net> writes: > > > > > Q: Do I comment out the "I386_CPU" and "I486_CPU" > > > lines to optimize for a Pentium, (& if not, how do I,) and > > > > Yes. > > > > > Q: Does it make a significant difference? > > > > It will make the kernel a bit smaller, but it won't speed anything up. > > It will speed up some kernel code, because it will use different > (non-386 compatible) asm code for things like bzero. > > Kris Do the options CPUTYPE=i586/mmx CFLAGS= -O -pipe NOPROFILE=true in /etc/make.conf do anything for the kernel, or do they just affect userland? Just wondering... To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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