jruby 9.4.8.0 (3.1.4) 2024-07-02 4d41e55a67 OpenJDK 64-Bit Server VM 18.0.2.1+0 on 18.0.2.1+0 +jit [arm64-darwin]
Warming up --------------------------------------
         MutexFixnum     1.399M i/100ms
  thread-MutexFixnum    88.529k i/100ms
Concurrent::AtomicFixnum
                         8.141M i/100ms
thread-Concurrent::AtomicFixnum
                       127.454k i/100ms
Calculating -------------------------------------
         MutexFixnum     13.902M (± 0.7%) i/s   (71.93 ns/i) -     69.965M in   5.032978s
  thread-MutexFixnum    823.398k (± 5.3%) i/s    (1.21 μs/i) -      4.161M in   5.067168s
Concurrent::AtomicFixnum
                         79.494M (± 0.9%) i/s   (12.58 ns/i) -    398.895M in   5.018339s
thread-Concurrent::AtomicFixnum
                          1.268M (± 7.6%) i/s  (788.80 ns/i) -      6.373M in   5.060407s