Every user has work they need to do. The goal of Gentoo is to design tools and systems that allow a user to do that work as pleasantly and efficiently as possible, as they see fit. Our tools should be a joy to use, and should help the user to appreciate the richness of the Linux and free software community, and the flexibility of free software. This is only possible when the tool is designed to reflect and transmit the will of the user, and leave the possibilities open as to the final form of the raw materials (the source code.) If the tool forces the user to do things a particular way, then the tool is working against, rather than for, the user. We have all experienced situations where tools seem to be imposing their respective wills on us. This is backwards, and contrary to the Gentoo philosophy.

Put another way, the Gentoo philosophy is to create better tools. When a tool is doing its job perfectly, you might not even be very aware of its presence, because it does not interfere and make its presence known, nor does it force you to interact with it when you don't want it to. The tool serves the user rather than the user serving the tool.

The goal of Gentoo is to strive to create near-ideal tools. Tools that can accommodate the needs of many different users all with divergent goals. Don't you love it when you find a tool that does exactly what you want to do? Doesn't it feel great? Our mission is to give that sensation to as many people as possible.

CFLAGS="-march=native -O2 -ggdb -pipe -ftree-vectorize -fmerge-all-constants -minline-stringops-dynamically"

Now that your kernel source tree is installed, it's now time to compile your kernel by using our genkernel script to automatically build a kernel for you. genkernel works by configuring a kernel nearly identically to the way our Installation CD kernel is configured. This means that when you use genkernel to build your kernel, your system will generally detect all your hardware at boot-time, just like our Installation CD does. Because genkernel doesn't require any manual kernel configuration, it is an ideal solution for those users who may not be comfortable compiling their own kernels.

TOM>Поставил gentoo! Радости было! Правда мне повезло. У меня GRUB2 ну и надо было как-то меню загрузки отредактировать, чтобы натравить на gentoo,

zaufi@gentop /boot/grub2 $ cat /boot/grub2/custom.cfg 
#
# Custom entries for my Gentoo system
#

menuentry 'Current Gentoo Linux' --class gnu-linux --class gnu --class os --hotkey G {
        savedefault
        load_video
        insmod gzio
        insmod part_msdos
        insmod reiserfs
        set root='(hd0,msdos1)'
        search --no-floppy --fs-uuid --set=root 22d34c05-5d14-44fb-bcd4-44ba5465d1e2
        echo 'Loading Current Gentoo Linux ...'
        linux /kernel root=/dev/sdb3 ro
}

menuentry 'Current Gentoo Linux (experimental)' --class gnu-linux --class gnu --class os --hotkey X {
        savedefault
        load_video
        insmod gzio
        insmod part_msdos
        insmod reiserfs
        set root='(hd0,msdos1)'
        search --no-floppy --fs-uuid --set=root 22d34c05-5d14-44fb-bcd4-44ba5465d1e2
        echo 'Loading Current Gentoo Linux ...'
        linux /kernel root=/dev/sdb3 ro pcie_aspm=force i915.i915_enable_rc6=1 i915.lvds_downclock=1 i915.i915_enable_fbc=1
}

menuentry 'Previous Gentoo Linux' --class gnu-linux --class gnu --class os --hotkey P {
        savedefault
        load_video
        insmod gzio
        insmod part_msdos
        insmod reiserfs
        set root='(hd0,msdos1)'
        search --no-floppy --fs-uuid --set=root 22d34c05-5d14-44fb-bcd4-44ba5465d1e2
        echo 'Loading Previous Gentoo Linux ...'
        linux /kernel.old root=/dev/sdb3 ro
}

menuentry 'Known Stable Gentoo Linux' --class gnu-linux --class gnu --class os --hotkey S {
        savedefault
        load_video
        insmod gzio
        insmod part_msdos
        insmod reiserfs
        set root='(hd0,msdos1)'
        search --no-floppy --fs-uuid --set=root 22d34c05-5d14-44fb-bcd4-44ba5465d1e2
        echo 'Loading Known Stable Gentoo Linux ...'
        linux /kernel.stable root=/dev/sdb3 ro
}

TOM>Поставил gnome, софт разный. В общем результатом я очень доволен

zaufi@gentop / $ ll /etc/make.profile
lrwxrwxrwx 1 root root 60 Oct 27  2011 /etc/make.profile -> ../usr/portage/profiles/default/linux/amd64/10.0/desktop/kde/

# Hardware related flags
*/* sse3 ssse3 sse4_1 lm_sensors wifi pmu device-mapper vaapi -joystick

# system/generic
*/* bash-completion zsh-completion gpg ithreads threads inotify lvm network network-cron
*/* -acl -doc -nls -lvm1 -libproxy -suid -prelink

# system/daemons
*/* syslog avahi mdnsresponder-compat networkmanager

# system/libs
*/* expat fontconfig curl fftw lzma lzo webkit gmp
*/* -introspection -slang -sdl

# Multimedia
*/* ffmpeg lame theora nsplugin matroska v4l multimedia phonon

# Sound related flags
*/* gstreamer musicbrainz cue -mikmod -oss

# Images related flags
*/* gd gphoto2 graphviz imagemagick -tiff openexr hdri xmp

# Text related flags
*/* latex icu

# Protocol flags
*/* upnp srtp jabber ftp idn gnutls ntp slp openssl rss zeroconf sip irc
*/* -ipv6 -ppp  -samba -smbclient

# Databases support
*/* mysql sqlite sqlite3 sql -postgres

# Development
*/* git mercurial declarative python c++0x
*/* -fortran -java -subversion -vala -perl -rdoc

# X related use flags
*/* dga xinerama xscreensaver xcomposite openvg gallium -wxwidgets xvmc

# WM flags
*/* -gtk -handbook -gnome

*/* INPUT_DEVICES: -* keyboard mouse evdev synaptics
*/* VIDEO_CARDS: -* intel i965
*/* CAMERAS: -* ptp2
*/* ALSA_CARDS: -* hda-intel

# No other than English languages are required!
*/* LINGUAS: -*

*/* APACHE2_MPMS: -* worker
*/* BUILD_OPTIONS: -* symbols=compress

*/* RUBY_TARGETS: -* ruby19

*/* PYTHON_TARGETS: -* python2_7 python3_2
*/* PYTHON_SINGLE_TARGET: -* python2_7

*/* GRUB_PLATFORMS: -* pc efi-64

The Gentoo Installation CDs are bootable CDs which contain a self-sustained Gentoo environment. They allow you to boot Linux from the CD. During the boot process your hardware is detected and the appropriate drivers are loaded. They are maintained by Gentoo developers.

All Installation CDs allow you to boot, set up networking, initialize your partitions and start installing Gentoo from the Internet.

CFLAGS="-march=native -O2 -pipe"
CXXFLAGS="${CFLAGS}"
LDFLAGS="-Wl,-O1 -Wl,--sort-common -Wl,--as-needed"

Z>CFLAGS="-march=native -O2 -pipe"
Z>CXXFLAGS="${CFLAGS}"
Z>LDFLAGS="-Wl,-O1 -Wl,--sort-common -Wl,--as-needed"
Z>

-O2 is the recommended default. -O3 is known to cause problems when used system-wide, so we recommend that you stick to -O2.

Z>CFLAGS="-march=native -O2 -pipe"
Z>CXXFLAGS="${CFLAGS}"
Z>LDFLAGS="-Wl,-O1 -Wl,--sort-common -Wl,--as-needed"
Z>

gcc -march=core2 -E -v - </dev/null 2>&1 | sed -n 's/.* -v - //p'

-march=core2

gcc -march=native -E -v - </dev/null 2>&1 | sed -n 's/.* -v - //p'

-march=corei7-avx -mcx16 -msahf -mno-movbe -maes -mpclmul -mpopcnt -mno-abm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-tbm -mavx -msse4.2 -msse4.1 --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=3072 -mtune=corei7-avx

eclean-dist

emerge -e system && emerge -e system && emerge -e world && emerge -e world

# cat ~/bin/sync 
#!/bin/sh
emerge --sync
#layman -S
eclean distfiles
emerge -pvuND world

TOM>emerge -e system && emerge -e system && emerge -e world && emerge -e world
TOM>

TOM>Так и сделал. eselect'ом потом выбрал новый gcc. Вроде работает всё хорошо