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