I just ran a comparison of a benchmarking script we use for our own product and saw wildly different results. There's no way I'd consider migrating to truffle today:
# With MRI ruby-2.6.6
Measuring [loading ruby dependencies] 3.560960 2.507366 6.075755 ( 6.154898)
Measuring [loading configuration yaml] 0.823779 0.085605 0.909384 ( 0.931334)
Measuring [creating objects from YAML and performing filtering] 0.499576 0.042023 0.541599 ( 0.552427)
Measuring [object validation] 2.362139 0.226133 2.588272 ( 2.674958)
Total time: 7.246786 2.861230 10.115445 ( 10.314025)
# With truffleruby-21.3.0
Measuring [loading ruby dependencies] 91.818473 5.598149 97.427109 ( 36.676471)
Measuring [loading configuration yaml] 28.032630 0.811577 28.844207 ( 8.616437)
Measuring [creating objects from YAML and performing filtering] 14.952781 0.479387 15.432168 ( 4.634803)
Measuring [object validation] 86.747057 2.788266 89.535323 ( 28.324909)
Total time: 221.595872 9.680172 231.286531 ( 78.264226)
# With MRI ruby-2.6.6
Measuring [loading ruby dependencies] 3.560960 2.507366 6.075755 ( 6.154898)
Measuring [loading configuration yaml] 0.823779 0.085605 0.909384 ( 0.931334)
Measuring [creating objects from YAML and performing filtering] 0.499576 0.042023 0.541599 ( 0.552427)
Measuring [object validation] 2.362139 0.226133 2.588272 ( 2.674958)
Total time: 7.246786 2.861230 10.115445 ( 10.314025)
# With truffleruby-21.3.0
Measuring [loading ruby dependencies] 91.818473 5.598149 97.427109 ( 36.676471)
Measuring [loading configuration yaml] 28.032630 0.811577 28.844207 ( 8.616437)
Measuring [creating objects from YAML and performing filtering] 14.952781 0.479387 15.432168 ( 4.634803)
Measuring [object validation] 86.747057 2.788266 89.535323 ( 28.324909)
Total time: 221.595872 9.680172 231.286531 ( 78.264226)