```
$ benchmark-driver -v --rbenv 'before --jit;after --jit' --repeat-count=12 --alternate --output=all benchmark.yml
before --jit: ruby 3.0.0dev (2020-12-17T06:17:46Z master 3b4d698e) +JIT [x86_64-linux]
after --jit: ruby 3.0.0dev (2020-12-17T07:01:48Z master 843abb96f0) +JIT [x86_64-linux]
last_commit=Lazily move PC with RUBY_VM_CHECK_INTS
Calculating -------------------------------------
                                 before --jit           after --jit
Optcarrot Lan_Master.nes    80.29343646660429     83.15779723251525 fps
                            82.26755637885149     85.50197941326810
                            83.50682959728820     88.14657804306270
                            85.01236533133049     88.78201988978667
                            87.81799334561326     88.94841008936447
                            87.88228562393064     89.37925215601926
                            88.06695585889995     89.86143277214475
                            88.84730834922165     90.00773346420887
                            90.46317871213088     90.82603371104014
                            90.96308347148916     91.29797694822179
                            90.97945938504556     91.31086331868738
                            91.57127890154500     91.49949184318844
```