From: Hans Malissa This is not a support request; I'm mainly asking out of curiosity (that's why I'm posting this in lfs-chat). My CPU is an Intel Atom x5-Z8330 (06-4c-04) (https://www.intel.com/content/www/us/en/products/boards-kits/compute-stick/stk1a32sc.html), and during the configuration of Linux-5.2.8 there is an item in 'Processor type and features' under 'Processor family' that says 'Intel Atom' (CONFIG_MATOM). The description says: 'Select this for the Intel Atom platform. Intel Atom CPUs have an in-order pipelining architecture and thus can benefit from accordingly optimized code. Use a recent GCC with specific Atom support in order to fully benefit from selecting this option.'. I'm not sure what that means. Does the GCC that's built during LFS/BLFS have such a 'specific Atom support' or what would it take to get that? LFS runs fine with the 'Generic-x86-64' option; I'm just wondering if I can get more out of this CPU. Thanks a lot! For GCC you have to set “march” and/or related settings under CFLAGS/CXXFLAGS as you compile to get the runtime support. It mostly means the processor will be used more efficiently if you use the specific code instead of the generic code. If you want to build a new LFS with CFLAGS set to enable Atom support, have fun! Flareon Zulu |
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