Оптимизация

CFLAGS="-O1 -march=native -pipe"
CXXFLAGS="-O1 -march=native -pipe"
CHOST="x86_64-pc-linux-gnu"
MAKEOPTS="-j3"
USE="mmx sse sse2 sse3 3dnow -arts -ipv6 aac acpi alsa applet archive automount bash-completion beagle bluetooth cairo cdda consolekit cups dbus djvu dirac dri dri2 dvd encode epiphany eselect fam ffmpeg flac freetype fuse galago gedit  gphoto2 gpm ghostscript gtk gnome gnome-keyring gstreamer hal icq irc jabber jpeg -joystick -qt3support -qt3 -qt4 -kde -ldap lm_sensors mpeg mp3 matroska mrim mono multilib multiuser nautilus  ncurses nptl opengl ogg pch samba sqlite slp tiff theora unicode udev usb v4l v4l2 vorbis win32codecs x264 xcomposite xv xvid xulrunner X"
LINGUAS="ru en"
GENTOO_MIRRORS="http://mirror.yandex.ru/gentoo-distfiles/ ftp://mirror.yandex.ru/gentoo-distfiles/"
SYNC="rsync://rsync2.ru.gentoo.org/gentoo-portage"
ALSA_CARDS="snd_hda_intel"
VIDEO_CARDS="nvidia"
source /var/lib/layman/make.conf

CHOST="x86_64-pc-linux-gnu"
CFLAGS="-march=k8 -O2 -pipe"
CXXFLAGS="${CFLAGS}"
MAKEOPTS="-j3"
USE="mmx sse sse2 sse3 3dnow -arts -ipv6 aac acpi alsa applet archive automount bash-completion beagle bluetooth cairo cdda consolekit cups dbus djvu dirac dri dri2 dvd encode epiphany eselect fam ffmpeg flac freetype fuse galago gedit  gphoto2 gpm ghostscript gtk gnome gnome-keyring gstreamer hal icq irc jabber jpeg -joystick -qt3support -qt3 -qt4 -kde -ldap lm_sensors mpeg mp3 matroska mrim mono multilib multiuser nautilus  ncurses nptl opengl ogg pch samba sqlite slp tiff theora unicode udev usb v4l v4l2 vorbis win32codecs x264 xcomposite xv xvid xulrunner X"
LINGUAS="ru en"
GENTOO_MIRRORS="http://mirror.yandex.ru/gentoo-distfiles/ ftp://mirror.yandex.ru/gentoo-distfiles/"
SYNC="rsync://rsync2.ru.gentoo.org/gentoo-portage"
ALSA_CARDS="snd_hda_intel"
VIDEO_CARDS="nvidia"
source /var/lib/layman/make.conf

localhost tyrnov # cat /proc/cpuinfo 
processor    : 0
vendor_id    : AuthenticAMD
cpu family    : 15
model        : 43
model name    : AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
stepping    : 1
cpu MHz        : 2000.144
cache size    : 512 KB
physical id    : 0
siblings    : 2
core id        : 0
cpu cores    : 2
apicid        : 0
initial apicid    : 0
fpu        : yes
fpu_exception    : yes
cpuid level    : 1
wp        : yes
flags        : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow rep_good pni lahf_lm cmp_legacy
bogomips    : 4000.28
TLB size    : 1024 4K pages
clflush size    : 64
cache_alignment    : 64
address sizes    : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
processor    : 1
vendor_id    : AuthenticAMD
cpu family    : 15
model        : 43
model name    : AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
stepping    : 1
cpu MHz        : 2000.144
cache size    : 512 KB
physical id    : 0
siblings    : 2
core id        : 1
cpu cores    : 2
apicid        : 1
initial apicid    : 1
fpu        : yes
fpu_exception    : yes
cpuid level    : 1
wp        : yes
flags        : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow rep_good pni lahf_lm cmp_legacy
bogomips    : 4000.08
TLB size    : 1024 4K pages
clflush size    : 64
cache_alignment    : 64
address sizes    : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp