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. If you want to speed up packages you compile yourself, you should use -march=native. This is all well documented at https://wiki.gentoo.org/wiki/GCC_optimization. In order to use binary packages that have been optimized for more modern systems, see https://www.gentoo.org/news/2024/02/04/x86-64-v3.html. Regards Waldo On Fri, May 24, 2024, 10:40 Michael <confabul...@kintzios.com> wrote: > Hi Jude, > > If you intend to use Gentoo's precompiled binary packages, to speed up > your OS > installation, you should have 'generic' CFLAGS; e.g.: > > CFLAGS="-march=x86-64 -mtune=generic -O2 -pipe" > > Please check these pages: > > https://www.gentoo.org/news/2023/12/29/Gentoo-binary.html > https://wiki.gentoo.org/wiki/Gentoo_Binary_Host_Quickstart > https://wiki.gentoo.org/wiki/Binary_package_guide > > > On Thursday, 23 May 2024 22:45:52 BST Jude DaShiell wrote: > > Portage 3.0.63 (python 3.11.9-final-0, default/linux/amd64/23.0/desktop, > > gcc-13, glibc-2.39-r6, 6.6.7 x86_64) > > ================================================================= > > System Settings > > ================================================================= > > System uname: > > Linux-6.6.7-x86_64-Intel-R-_Core-TM-_i7-10700K_CPU_@ > _3.80GHz-with-glibc2.39 > > KiB Mem: 16156144 total, 14998556 free > > KiB Swap: 40700884 total, 40700884 free > > Timestamp of repository gentoo: Thu, 23 May 2024 00:45:00 +0000 > > Head commit of repository gentoo: > 6731026bd416e5bd05a2b380cfdf6ff7e7134fe5 > > sh bash 5.1_p16-r6 > > ld GNU ld (Gentoo 2.42 p3) 2.42.0 > > app-misc/pax-utils: 1.3.7::gentoo > > app-shells/bash: 5.1_p16-r6::gentoo > > dev-build/autoconf: 2.71-r7::gentoo > > dev-build/automake: 1.16.5-r2::gentoo > > dev-build/libtool: 2.4.7-r4::gentoo > > dev-build/make: 4.4.1-r1::gentoo > > dev-build/meson: 1.4.0-r1::gentoo > > dev-lang/perl: 5.38.2-r3::gentoo > > dev-lang/python: 3.11.9::gentoo, 3.12.3::gentoo > > sys-apps/baselayout: 2.15::gentoo > > sys-apps/openrc: 0.54::gentoo > > sys-apps/sandbox: 2.38::gentoo > > sys-devel/binutils: 2.42-r1::gentoo > > sys-devel/binutils-config: 5.5::gentoo > > sys-devel/gcc: 13.2.1_p20240210::gentoo > > sys-devel/gcc-config: 2.11::gentoo > > sys-kernel/linux-headers: 6.6-r1::gentoo (virtual/os-headers) > > sys-libs/glibc: 2.39-r6::gentoo > > Repositories: > > > > gentoo > > location: /var/db/repos/gentoo > > sync-type: rsync > > sync-uri: rsync://rsync.gentoo.org/gentoo-portage > > priority: -1000 > > volatile: False > > sync-rsync-verify-max-age: 3 > > sync-rsync-verify-metamanifest: yes > > sync-rsync-extra-opts: > > sync-rsync-verify-jobs: 1 > > > > Binary Repositories: > > > > gentoobinhost > > priority: 1 > > sync-uri: > > https://distfiles.gentoo.org/releases/amd64/binpackages/23.0/x86-64 > > > > ACCEPT_KEYWORDS="amd64" > > ACCEPT_LICENSE="@FREE" > > CBUILD="x86_64-pc-linux-gnu" > > CFLAGS="-O2 -pipe -native" > > CHOST="x86_64-pc-linux-gnu" > > CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt" > > CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf > > /etc/gentoo-release /etc/sandbox.d" CXXFLAGS="-O2 -pipe -native" > > DISTDIR="/var/cache/distfiles" > > ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY > > GDK_PIXBUF_MODULE_FILE GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX > PERL_CORE > > PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME > > XDG_DATA_HOME XDG_RUNTIME_DIR XDG_STATE_HOME" FCFLAGS="-O2 -pipe -native" > > FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs > > binpkg-multi-instance buildpkg-live config-protect-if-modified distlocks > > ebuild-locks fixlafiles ipc-sandbox merge-sync merge-wait multilib-strict > > network-sandbox news parallel-fetch pid-sandbox pkgdir-index-trusted > > preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms > > strict unknown-features-warn unmerge-logs unmerge-orphans userfetch > > userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe -native" > > GENTOO_MIRRORS="http://distfiles.gentoo.org"; > > LANG="en_US.utf8" > > LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs" > > LEX="flex" > > MAKEOPTS="-j7 -l8" > > PKGDIR="/var/cache/binpkgs" > > PORTAGE_CONFIGROOT="/" > > PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times > > --omit-dir-times --compress --force --whole-file --delete --stats > > --human-readable --timeout=180 --exclude=/distfiles --exclude=/local > > --exclude=/packages --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" > > SHELL="/bin/bash" > > USE="X a52 aac acl acpi alsa amd64 bluetooth branding bzip2 cairo cdda > cdr > > cet crypt cups dbus dri dts dvd dvdr elogind encode exif flac gdbm gif > gpm > > gtk gui iconv icu ipv6 jpeg lcms libnotify libtirpc mad mng mp3 mp4 mpeg > > multilib ncurses nls ogg opengl openmp pam pango pcre pdf png policykit > > ppds qt5 readline sdl seccomp sound spell ssl startup-notification svg > > test-rust tiff truetype udev udisks unicode upower usb vorbis vulkan > > wxwidgets x264 xattr xcb xft xml xv xvid zlib" ABI_X86="64" > > ADA_TARGET="gcc_12" APACHE2_MODULES="authn_core authz_core socache_shmcb > > unixd actions alias auth_basic authn_anon authn_dbm authn_file authz_dbm > > authz_groupfile authz_host authz_owner authz_user autoindex cache cgi > cgid > > dav dav_fs dav_lock deflate dir env expires ext_filter file_cache filter > > headers include info log_config logio mime mime_magic negotiation rewrite > > setenvif speling status unique_id userdir usertrack vhost_alias" > > CALLIGRA_FEATURES="karbon sheets words" COLLECTD_PLUGINS="df interface > irq > > load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2" > > ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 > garmin > > garmintxt gpsclock greis isync itrax mtk3301 ntrip navcom oceanserver > > oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 tsip tripmate tnt > ublox" > > INPUT_DEVICES="libinput" KERNEL="linux" LCD_DEVICES="bayrad cfontz glk > > hd44780 lb216 lcdm001 mtxorb text" LUA_SINGLE_TARGET="lua5-1" > > LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" > > PHP_TARGETS="php8-1" POSTGRES_TARGETS="postgres15" > > PYTHON_SINGLE_TARGET="python3_11" PYTHON_TARGETS="python3_11" > > RUBY_TARGETS="ruby31 ruby32" VIDEO_CARDS="amdgpu fbdev intel nouveau > radeon > > radeonsi vesa dummy" XTABLES_ADDONS="quota2 psd pknock lscan length2 > > ipv4options ipp2p iface geoip fuzzy condition tarpit sysrq proto logmark > > ipmark dhcpmac delude chaos account" Unset: ADDR2LINE, AR, ARFLAGS, AS, > > ASFLAGS, CC, CCLD, CONFIG_SHELL, CPP, CPPFLAGS, CTARGET, CXX, CXXFILT, > > ELFEDIT, EMERGE_DEFAULT_OPTS, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, > > INSTALL_MASK, LC_ALL, LD, LFLAGS, LIBTOOL, LINGUAS, MAKE, MAKEFLAGS, NM, > > OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, > > PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, > > PYTHONPATH, RANLIB, READELF, RUSTFLAGS, SIZE, STRINGS, STRIP, YACC, > YFLAGS > >
