Core_bench is a library for running benchmarks written
using the ppx_bench syntax extension.
See https://blog.janestreet.com/core_bench-micro-benchmarking-for-ocaml/ for the introduction.
To run the benchmarks when using dune, you usually need to define
your own executable that calls Inline_benchmarks_public.Runner.main.
You need to make sure that the benchmarks are linked into this executable, usually
by adding (link_flags -linkall) to the executable stanza to make sure the
library dependencies are not dropped by the compiler.