On Tuesday 23 of November 2021, Luboš Luňák wrote: > > > OpenSUSE 7.2 Clang + libc++ Clang + std Gcc + std > > > Run 1 50,923045275 45,456441587 45,878275287 49,487550577 > > Do you have more tests than this one? With the data you've provided that's > good enough as an indicator that it should be investigated, but not much > more, as there can be various factors that cause such results. Maybe Clang > just happened to optimize better one function that's called often in this > case, maybe one of the compilers is older than the older, maybe whatever > else. > > Can you try more different tests?
By the way, if you're testing LO performance, you should use build settings that try to match what is used for release builds. You can find the setups in the distro-configs directory. In particular --enable-mergelibs --enable-lto are two flags that could have a significant impact on your results. -- Luboš Luňák l.lu...@collabora.com
