AMD Ryzen Threadripper Compiler Tuning/Optimization Benchmarks With GCC 9, PGO

[phoronix]

Phoronix: AMD Ryzen Threadripper Compiler Tuning/Optimization Benchmarks With GCC 9, PGO

For those interested in compiler optimization/tuning with AMD Ryzen Threadripper hardware, here are some follow-up benchmarks to Tuesday's GCC 9 vs. Clang 8 C/C++ Compiler Performance On AMD Threadripper, Intel Core i9...

http://www.phoronix.com/scan.php?page=news_item&px=Threadripper-GCC9-Optimized-Run

[sdack]

Benchmarking LTO and PGO without benchmarking them together is like benchmarking -march=native without -O3 or like comparing fries to burgers without including the combined taste or like tooth paste without tooth brush or ...

[xorbe]

edit: my bad, this was on the 8086K box, not the 2700X. Yesterday on the (...) box, I built gcc9 with -02 vs -03 profiled, and then gcc recompiled itself about 5-6% faster. I do need to retry this on the 2700X for reasons.