Linux ARM64 stable compiler is now PGO/BOLT optimized, and up to 30% faster

124 points Kobzol 2025-04-03 10:40:37 16 comments

The same optimizations that were previously applied to x64 Linux compiler builds are now also applied for ARM64 builds: https://github.com/rust-lang/rust/releases/tag/1.86.0#user-content-1.86.0-Internal-Changes

EDIT: It's only LTO and PGO, not BOLT yet, sorry.