yurai007 added a comment. Indeed, measuring performance is tricky and chasing slow downs can be challenging especially those at the level of ~0.2%-0.1% or less. Personally, every time when I need to use perf on Clang I follow those short guidelines to reduce noise and get relevant numbers: https://llvm.org/docs/Benchmarking.html#linux It contains some extra information about controlling mentioned ASLR (via *randomize_va_space), SMT, cpu isolation and more.
Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D128439/new/ https://reviews.llvm.org/D128439 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
