Date: Thu, 24 Oct 2002 10:04:39 -0500 From: Walter <walterk1@earthlink.net> To: "freebsd-questions@FreeBSD.org" <freebsd-questions@FreeBSD.org> Subject: Re: kernel optimization Message-ID: <3DB80C07.9BDDFE63@earthlink.net> References: <3DB80AF6.4559ED25@earthlink.net>
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Never mind... I just found the explanation further down (from the "machine i386" line in LINT. Sorry. # CPU OPTIONS # # You must specify at least one CPU (the one you intend to run on); # deleting the specification for CPUs you don't need to use may make # parts of the system run faster. This is especially true removing # I386_CPU. # cpu I386_CPU cpu I486_CPU cpu I586_CPU # aka Pentium(tm) cpu I686_CPU # aka Pentium Pro(tm) Walter wrote: > I haven't yet found notes on optimizing the kernel by > telling the compiler I have a Pentium rather than just > a 386-compatible processor. I presume these lines > in the kernel configuration file deal with this: > > machine i386 > cpu I386_CPU > cpu I486_CPU > cpu I586_CPU > cpu I686_CPU > > Q: Do I comment out the "I386_CPU" and "I486_CPU" > lines to optimize for a Pentium, (& if not, how do I,) and > Q: Does it make a significant difference? > > TIA. > > Walter > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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