RubyVM::YJIT.runtime_stats

# File tmp/rubies/ruby-3.3.0/yjit.rb, line 154
def self.runtime_stats(context: false)
  stats = Primitive.rb_yjit_get_stats(context)
  return stats if stats.nil?

  stats[:object_shape_count] = Primitive.object_shape_count
  return stats unless Primitive.rb_yjit_stats_enabled_p

  side_exits = total_exit_count(stats)
  total_exits = side_exits + stats[:leave_interp_return]

  # Number of instructions that finish executing in YJIT.
  # See :count-placement: about the subtraction.
  retired_in_yjit = stats[:yjit_insns_count] - side_exits

  # Average length of instruction sequences executed by YJIT
  avg_len_in_yjit = total_exits > 0 ? retired_in_yjit.to_f / total_exits : 0

  # Proportion of instructions that retire in YJIT
  total_insns_count = retired_in_yjit + stats[:vm_insns_count]
  yjit_ratio_pct = 100.0 * retired_in_yjit.to_f / total_insns_count
  stats[:total_insns_count] = total_insns_count
  stats[:ratio_in_yjit] = yjit_ratio_pct

  # Make those stats available in RubyVM::YJIT.runtime_stats as well
  stats[:side_exit_count]  = side_exits
  stats[:total_exit_count] = total_exits
  stats[:avg_len_in_yjit]  = avg_len_in_yjit

  stats
end