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19:15:24
veckon
What is the current recommended flags to build "the most efficient" SBCL for x86_64 on Linux? Is "--fancy" enough, or will I be missing out on some neat optimizations available on latest Intel CPUs (like Skylake-X)?
20:12:10
dougk
veckon: there are no optimizations like what you're implying. "efficient" might, for some user, be "mean and lean" - the opposite of fancy. Disable threads, disable unicode. And disable safety if you want to go recklessly fast. Basically don't think of build options in terms of efficiency though.
20:20:50
nyef
... Okay, having checked logs, the main build-time feature toggles that affect time-cost of code running on the target system are threads and unicode.
20:21:51
nyef
Everything beyond that is... Oh, wait. The one who originally asked already left. Nevermind.