module ZJIT

This module allows for introspection of ZJIT, CRuby’s just-in-time compiler. Everything in the module is highly implementation specific and the API might be less stable compared to the standard library.

This module may not exist if ZJIT does not support the particular platform for which CRuby is built.

Public Class Methods

stats ()

Source

# File zjit.rb, line 18
def stats
  stats = Primitive.rb_zjit_stats

  if stats.key?(:vm_insns_count) && stats.key?(:zjit_insns_count)
    stats[:total_insns_count] = stats[:vm_insns_count] + stats[:zjit_insns_count]
    stats[:ratio_in_zjit] = 100.0 * stats[:zjit_insns_count] / stats[:total_insns_count]
  end

  stats
end

Return ZJIT statistics as a Hash

stats_string ()

Source

# File zjit.rb, line 30
def stats_string
  buf = +''
  stats = self.stats

  [
    :total_insns_count,
    :vm_insns_count,
    :zjit_insns_count,
    :ratio_in_zjit,
  ].each do |key|
    value = stats[key]
    if key == :ratio_in_zjit
      value = '%0.1f%%' % value
    end
    buf << "#{'%-18s' % "#{key}:"} #{value}\n"
  end
  buf
end

Get the summary of ZJIT statistics as a String