ruby/benchmark/vm_ivar_of_class_set.yml

prelude: |
  class C
    @a = 1
    def self.a o
      @a = o; @a = o; @a = o; @a = o; @a = o; @a = o;
    end
  end  
benchmark:
  vm_ivar_of_class_set: |
    a = C.a(nil)    
loop_count: 30000000