On Tue, Jul 11, 2017 at 6:06 PM, Andrés Becerra Sandoval <andres.bece...@gmail.com> wrote: > > It says that the microarchitecture is apollo-lake. > > What would be the proper march configuration for this box? >
Per the GCC documentation, here are the options you can pass to -march (described under the section for -mtune): https://gcc.gnu.org/onlinedocs/gcc-4.5.3/gcc/i386-and-x86_002d64-Options.html https://gcc.gnu.org/onlinedocs/gcc-6.1.0/gcc/x86-Options.html https://gcc.gnu.org/onlinedocs/gcc-7.1.0/gcc/x86-Options.html Surprisingly it was hard to find this page of the documentation, even knowing what I was looking for. You should also refer to the Wiki documentation for -march, found here: https://wiki.gentoo.org/wiki/GCC_optimization#-march. Specifically I need to point out the use of cpuinfo2cpuflags-x86. If you are finding it hard to find the corresponding -march/-mtune setting for your processor by name, you may need to select an equivalent setting by looking at the features your CPU supports. You can also ask the list. R0b0t1.
