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Should i use -march=k8 or -march=athlon64 ? Or doesn't make any |
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difference? My CPU is a AMD64 3000+ |
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On 7/23/05, Simon Strandman <simon.strandman@×××××.com> wrote: |
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> Allan Wang skrev: |
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> |
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> > |
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> >Hmm, I don't see much difference here. |
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> > |
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> >before: |
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> >allan@aw ~ $ ./a.out 2420 1000 1048576 |
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> >Memory to memory copy rate = 1110.198486 MBytes / sec. Block size = |
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> >1048576. |
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> > |
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> >after: |
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> >aw allan # ./a.out 2420 1000 1048576 |
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> >Memory to memory copy rate = 1154.922974 MBytes / sec. Block size = |
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> >1048576. |
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> > |
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> >Allan |
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> > |
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> > |
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> > |
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> What kind och system do you have? |
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> |
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> These are my spec: |
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> AMD64 3500+ Winchester 2,2ghz |
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> Asus A8N-SLI Deluxe (nforce4) |
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> 1024mb DDR dual channel |
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> |
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> And emerge info: |
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> isidor ~ # emerge info |
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> Portage 2.0.51.22-r2 (default-linux/amd64/2005.0, gcc-3.4.4, |
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> glibc-2.3.5-r0, 2.6.12-ck3-r1 x86_64) |
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> ================================================================= |
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> System uname: 2.6.12-ck3-r1 x86_64 AMD Athlon(tm) 64 Processor 3500+ |
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> Gentoo Base System version 1.6.13 |
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> dev-lang/python: 2.3.5 |
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> sys-apps/sandbox: 1.2.11 |
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> sys-devel/autoconf: 2.13, 2.59-r6 |
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> sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.5 |
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> sys-devel/binutils: 2.16.1, 2.16.91.0.1 |
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> sys-devel/libtool: 1.5.18-r1 |
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> virtual/os-headers: 2.6.11-r2 |
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> ACCEPT_KEYWORDS="amd64" |
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> AUTOCLEAN="yes" |
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> CBUILD="x86_64-pc-linux-gnu" |
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> CFLAGS="-O2 -march=athlon64 -fomit-frame-pointer -pipe -fno-ident" |
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> CHOST="x86_64-pc-linux-gnu" |
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> CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config |
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> /usr/lib/X11/xkb /usr/share/config /var/qmail/control" |
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> CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" |
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> CXXFLAGS="-O2 -march=athlon64 -fomit-frame-pointer -pipe -fno-ident |
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> -fvisibility-inlines-hidden -fno-enforce-eh-specs" |
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> DISTDIR="/usr/portage/distfiles" |
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> FEATURES="autoconfig distlocks sandbox sfperms strict" |
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> GENTOO_MIRRORS="http://snigel.no-ip.com/ http://mirror.pudas.net/gentoo |
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> ftp://ftp.rhnet.is/pub/gentoo/ |
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> ftp://linux.rz.ruhr-uni-bochum.de/gentoo-mirror/ |
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> http://ftp.rhnet.is/pub/gentoo/" |
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> LANG="sv_SE.UTF-8" |
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> LC_ALL="sv_SE.UTF-8" |
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> LDFLAGS="-Wl,-O1" |
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> LINGUAS="sv" |
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> MAKEOPTS="-j2" |
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> PKGDIR="/usr/portage/packages" |
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> PORTAGE_TMPDIR="/var/tmp" |
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> PORTDIR="/usr/portage" |
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> PORTDIR_OVERLAY="/usr/local/portage" |
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> SYNC="rsync://rsync.gentoo.org/gentoo-portage" |
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> USE="amd64 X aalib alsa artswrappersuid avi berkdb caps cdr crypt dga |
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> dlloader dvd dvdr dvdread encode f77 fbcon foomaticdb fortran gcj gif |
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> glibc-omitfp gnome gphoto2 gpm gtk gtk2 hal imlib ipv6 ithreads |
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> jack-tmpfs java javascript jpeg kdeenablefinal logitech-mouse lzw |
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> lzw-tiff mad mikmod mng mozilla mp3 mpeg ncurses nls nomalloccheck nptl |
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> nptlonly nvidia objc offensive oggvorbis opengl pdflib perl pic png pnp |
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> python qt quicktime readline samba sdl spell ssl svg tcpd threadstiff |
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> truetype truetype-fonts type1-fonts unicode usb userlocales |
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> visualization xine xml2 xmms xpm xv xvid zlib video_cards_nvidia |
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> linguas_sv userland_GNU kernel_linux elibc_glibc" |
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> Unset: ASFLAGS, CTARGET |
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> |
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> -- |
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> Simon Strandman <simon.strandman@×××××.com> |
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> |
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> -- |
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> gentoo-amd64@g.o mailing list |
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> |
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> |
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|
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-- |
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gentoo-amd64@g.o mailing list |