Le 22/06/2020 à 06:27, Micah Kornfield a écrit : > There has been significant effort recently trying to optimize our C++ > code. One thing that seems to come up frequently is different benchmark > results between GCC and Clang. Even different versions of the same > compiler can yield significantly different results on the same code. > > I would like to propose that we choose a specific compiler and version on > Linux for evaluating performance related PRs. PRs would only be accepted > if they improve the benchmarks under the selected version.
Would this be a hard rule or just a guideline? There are many ways in which benchmark numbers can be improved or deteriorated by a PR, and in some cases that doesn't matter (benchmarks are not always realistic, and they are not representative of every workload). Regards Antoine.
