I've benchmarked MRI vs jruby a number of times over the years on real apps and MRI usually cones out faster on average with worse numbers at 95th and 98th perc

I've benchmarked MRI vs jruby a number of times over the years on real apps and MRI usually cones out faster on average with worse numbers at 95th and 98th percentiles due to GC performance. I never took the time to figure out why it is faster, but I assume that it is due to C libraries being faster for json serialization and my apps doing primarily json serialization after fetching from the database. Edit: I should test the performance of the json libs, which would be easy to do