Using march=native in /etc/make.conf
I just acquired an older Gateway GT5220 with an AMD 62 Athlon-x2 dual processor. I want to set it up as a sort of test machine. There does not seem to be a specific setting for 'cpu-type' or 'march' for this machine. I have notices on some Linux forums that they recommend using the 'native' keyword; i.e., march=native in the 'make.conf' file to get the most optimization out of the CPU. Would that be correct for FreeBSD also? Would it also be appropriate for other CPUs as well? Thanks :-) -- Carmel carmel...@hotmail.com |=== |=== |=== |=== | The hardest thing in the world to understand is the income tax. Albert Einstein ___ 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
Re: Using march=native in /etc/make.conf
On Tue, 23 Feb 2010 06:41:04 -0500 Carmel carmel...@hotmail.com wrote: I just acquired an older Gateway GT5220 with an AMD 62 Athlon-x2 dual processor. I want to set it up as a sort of test machine. There does not seem to be a specific setting for 'cpu-type' or 'march' for this machine. I have notices on some Linux forums that they recommend using the 'native' keyword; i.e., march=native in the 'make.conf' file to get the most optimization out of the CPU. Would that be correct for FreeBSD also? Would it also be appropriate for other CPUs as well? FreeBSD sets march and other default settings based on CPUTYPE. It's probably better to set that. ___ 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
Re: Using march=native in /etc/make.conf
On 02/23/10 13:21, RW wrote: On Tue, 23 Feb 2010 06:41:04 -0500 Carmelcarmel...@hotmail.com wrote: I just acquired an older Gateway GT5220 with an AMD 62 Athlon-x2 dual processor. I want to set it up as a sort of test machine. There does not seem to be a specific setting for 'cpu-type' or 'march' for this machine. I have notices on some Linux forums that they recommend using the 'native' keyword; i.e., march=native in the 'make.conf' file to get the most optimization out of the CPU. Would that be correct for FreeBSD also? Would it also be appropriate for other CPUs as well? FreeBSD sets march and other default settings based on CPUTYPE. It's probably better to set that. Yes but the old version of gcc in FreeBSD (4.2) is lacking support for modern CPUs. Using march=native is fine. ___ 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
