Both of these items have been handled.
-- Jude <jdashiel at panix dot com> "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." Ed Howdershelt 1940. On Fri, 24 May 2024, Michael wrote: > Jude, the initial CFLAGS I suggested are safe, but suboptimal. They do not > tune your system's compiler to utilise all of your CPU's instructions. > > In the first instance, you should set the CFLAGS as appropriate for your PC > and specifically include -march=native, as suggested by Waldo. Please check > this chapter in the Gentoo Handbook: > > https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/ > Stage#Configuring_compile_options > > Also, add the appropriate CPU USE flags either in CPU_FLAGS_X86="..." in your > /etc/portage/make.conf, or in /etc/portage/package.use/00cpuflags. You can > install and run cpuid2cpuflags to print out your CPU's USE flags - e.g.: > > mkdir /etc/portage/package.use # if not set up yet > echo "*/* $(cpuid2cpuflags)" > /etc/portage/package.use/00cpuflags > > Then you can proceed with the steps in the Handbook to install your system. > > The download of binary packages is a more recent choice offered by Gentoo and > can save time as opposed to compiling everything from source on your system. > Previously posted links explain how to configure your system to set up and use > a gentoo binhost. > > If there is a /binpackages/ subdirectory on the mirror it will contain the > precompiled binary packages and given you are running a modern CPU, you should > set /x86-64-v3 in your binrepos.conf. > > HTH. > > On Friday, 24 May 2024 13:29:46 BST Jude DaShiell wrote: > > Michael, > > > > The changes you selected worked. I got mirrorselect compiled and ran it > > and got http ftp and rsync repos defined. I'm wondering have all of the > > gentoo mirrors got binaries? > > > > > > -- > > Jude <jdashiel at panix dot com> > > "There are four boxes to be used in defense of liberty: > > soap, ballot, jury, and ammo. > > Please use in that order." > > Ed Howdershelt 1940. > > > > On Fri, 24 May 2024, Michael wrote: > > > On Friday, 24 May 2024 09:57:36 BST Waldo Lemmer wrote: > > > > Hi Michael, > > > > > > > > -march=x86-64 and -mtune=generic will not speed up your OS installation. > > > > These flags tell compilers to produce binaries that can run on any AMD64 > > > > system and that aren't optimized for your specific system. > > > > > > > > These flags have no effect on binary packages, since those have already > > > > been compiled. > > > > > > You're right, those are the settings the binary packages have been built > > > with - my mistake, sorry! > > > > > > The CFLAGS on the client should/could be tuned to its own CPU with "- > > > march=native". The "... speeding up of the OS installation" I had > > > mentioned > > > referred to downloading the binaries, rather than having to build them > > > locally. > > > > > > Anyway, the CFLAGS Jude posted are incorrect: > > > > > > CFLAGS="-O2 -pipe -native" > > > > > > and his CPU_FLAGS_X86 are incomplete: > > > > > > CPU_FLAGS_X86="mmx mmxext sse sse2" > > > > > > Your links should hopefully help Jude to set the correct settings for this > > > system, before he continues with the Gentoo Handbook. > >
