On Saturday 24 January 2009 5:07:57 pm Saifi Khan wrote: > On Sat, Jan 24, 2009 at 5:57 PM, Pojken Purken <p...@pp.dyndns.biz> wrote: > > RW wrote: > >> On Sat, 24 Jan 2009 15:27:02 +0100 > >> > >> Morgan Wesström <freebsd-questi...@pp.dyndns.biz> wrote: > >>> The section "options enabled" will list them all. I usually only add > >>> "-march=native" to my CFLAGS to enable a few more CPU specific > >>> optimizations. > >> > >> If you set CPUTYPE, -march is set to match, so setting -march=native > >> should be redundant. OTOH a number of other make variables are defined > >> from CPUTYPE, so if you set -march=native, but not CPUTYPE you might > >> miss some optimisations based on build options. > >> > >> I've no idea whether there are any such options, just that you're > >> probably not going to do better than setting CPUTYPE, and leaving the > >> rest alone. > > > > I'm sorry I was unclear. I set CPUTYPE to native of course which is then > > passed as -march=native to compiler. > > The entry in file /var/run/dmesg.boot shows the CPU information as > CPU: Intel (R) Celeron (R) CPU 2.40 GHz (686-class CPU) > > The entry in /usr/share/examples/etc/make.conf shows CPU types for Intel as > core2 core nocona pentium4m pentium4 prescott pentium3m pentium3 pentium-m > pentium2 pentiumpro pentium-mx pentium i486 i386 > > What would be the appropriate CPUTYPE specification in this case ? > > Is there any table which sort of maps the marketing names of the Intel > processor with the CPU information shown in dmesg ?
This might help you out a little. http://forums.freebsd.org/showthread.php?t=816 Hope you found it usefull Regards -- Blessings Gonzalo Nemmi _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
