Ubuntu 15.10 + GCC 5.2: -O3, March=Native, FLTO Tests

A Phoronix Premium subscriber requested some fresh GCC compiler optimization tests, so here's some current results using GCC 5.2 on Ubuntu 15.10 64-bit.

Via this new OpenBenchmarking.org result file upload are some data from a Haswell system when testing all of the open-source benchmarks compiled with -O3, -O3 -march=native, and then -O3 -march=native -flto to show various optimization levels. If you don't know what these optimizations mean, see the GCC documentation.

This quick post and that result file are just to evaluate the interest level in expanding upon this testing as it's been a while since it's been a while since last running any compiler tuning articles. I think the next step for a big compiler tuning article would be to do it on an Intel Skylake system, such as the Core i5 6500 or Core i5 6600K. I've also been thinking of tossing together a big PGO performance comparison.

Phoronix premium subscribers and Phoronix readers, let me know what compiler tests you'd like to see next. Don't forget there's also daily SVN development benchmarks of GCC and LLVM Clang too over at LinuxBenchmarking.com.