[llvm-dev] Noisy benchmark results?

Renato Golin via llvm-dev llvm-dev at lists.llvm.org
Mon Feb 27 03:14:28 PST 2017

On 27 February 2017 at 10:32, Bruce Hoult via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> 1) I get massively more stable execution times on 16.04 than on 14.04 on
> both x86 and ARM because 16.04 does far fewer gratuitous moves from one core
> to another, even without explicit pinning.

I think LNT should use taskset for the benchmarks if there are more
than 1 cores. We usually taskset the scripts to the core zero and
benchmark to a specific core (A53, A57) if they are different, or core
1 if they're all the same.


More information about the llvm-dev mailing list