Date: Sat, 4 Mar 2017 18:32:28 +0300 From: Slawa Olhovchenkov <slw@zxy.spb.ru> To: "Pedro F. Giffuni" <pfg@FreeBSD.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r314669 - head/sys/i386/conf Message-ID: <20170304153228.GM15630@zxy.spb.ru> In-Reply-To: <201703041504.v24F4HMh023937@repo.freebsd.org> References: <201703041504.v24F4HMh023937@repo.freebsd.org>
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On Sat, Mar 04, 2017 at 03:04:17PM +0000, Pedro F. Giffuni wrote: > Author: pfg > Date: Sat Mar 4 15:04:17 2017 > New Revision: 314669 > URL: https://svnweb.freebsd.org/changeset/base/314669 > > Log: > Drop i486 from the default i386 GENERIC kernel configuration. > > 80486 production was stopped by Intel on September 2007. Dropping the 486 > configuration option from the GENERIC kernel improves performance > slightly. > > Removing I486_CPU is consistent at this time: we don't support any > processor without a FPU and the PC-98 arch, which frequently involved i486 > CPUs, is also gone so we don't test such platforms anymore. What is realy mean? Some Via CPU is like i486 (by instruction set). CPU: VIA Ezra (800.04-MHz 686-class CPU) Origin="CentaurHauls" Id=0x678 Family=0x6 Model=0x7 Stepping=8 Features=0x803035<FPU,DE,TSC,MSR,MTRR,PGE,MMX> AMD Features=0x80000000<3DNow!>
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