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62 lines
2.4 KiB
Ruby
62 lines
2.4 KiB
Ruby
# frozen_string_literal: true
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module RubyVM::MJIT
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def self.runtime_stats
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stats = {}
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# Insn exits
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INSNS.each_value do |insn|
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exits = C.mjit_insn_exits[insn.bin]
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if exits > 0
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stats[:"exit_#{insn.name}"] = exits
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end
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end
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# Runtime stats
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C.rb_mjit_runtime_counters.members.each do |member|
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stats[member] = C.rb_mjit_counters.public_send(member)
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end
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# Other stats are calculated here
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stats[:side_exit_count] = stats.select { |name, _count| name.start_with?('exit_') }.sum(&:last)
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if stats[:vm_insns_count] > 0
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retired_in_mjit = stats[:mjit_insns_count] - stats[:side_exit_count]
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stats[:total_insns_count] = retired_in_mjit + stats[:vm_insns_count]
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stats[:ratio_in_mjit] = 100.0 * retired_in_mjit / stats[:total_insns_count]
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end
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stats
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end
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class << self
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private
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def print_stats
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stats = runtime_stats
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$stderr.puts("***MJIT: Printing MJIT statistics on exit***")
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$stderr.puts "side_exit_count: #{format('%10d', stats[:side_exit_count])}"
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$stderr.puts "total_insns_count: #{format('%10d', stats[:total_insns_count])}" if stats.key?(:total_insns_count)
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$stderr.puts "vm_insns_count: #{format('%10d', stats[:vm_insns_count])}" if stats.key?(:vm_insns_count)
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$stderr.puts "mjit_insns_count: #{format('%10d', stats[:mjit_insns_count])}"
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$stderr.puts "ratio_in_yjit: #{format('%9.1f', stats[:ratio_in_mjit])}%" if stats.key?(:ratio_in_mjit)
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print_exit_counts(stats)
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end
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def print_exit_counts(stats, how_many: 20, padding: 2)
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exits = stats.filter_map { |name, count| [name.to_s.delete_prefix('exit_'), count] if name.start_with?('exit_') }.to_h
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return if exits.empty?
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top_exits = exits.sort_by { |_name, count| -count }.first(how_many).to_h
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total_exits = exits.values.sum
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$stderr.puts "Top-#{top_exits.size} most frequent exit ops (#{format("%.1f", 100.0 * top_exits.values.sum / total_exits)}% of exits):"
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name_width = top_exits.map { |name, _count| name.length }.max + padding
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count_width = top_exits.map { |_name, count| count.to_s.length }.max + padding
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top_exits.each do |name, count|
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ratio = 100.0 * count / total_exits
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$stderr.puts "#{format("%#{name_width}s", name)}: #{format("%#{count_width}d", count)} (#{format('%.1f', ratio)}%)"
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end
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end
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end
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end
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