Remove mjit_exec benchmarks
Now that mjit_exec doesn't exist, those files feel old. I'll probably change how I benchmark it when I add benchmarks for it again.
This commit is contained in:
Takashi Kokubun
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a60507f616
commit
9f3140a42e
@ -1,237 +0,0 @@
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require 'benchmark_driver/struct'
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require 'benchmark_driver/metric'
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require 'erb'
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# A special runner dedicated for measuring jit_exec overhead.
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class BenchmarkDriver::Runner::MjitExec
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METRIC = BenchmarkDriver::Metric.new(name: 'Iteration per second', unit: 'i/s')
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# JobParser returns this, `BenchmarkDriver::Runner.runner_for` searches "*::Job"
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Job = ::BenchmarkDriver::Struct.new(
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:name, # @param [String] name - This is mandatory for all runner
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:metrics, # @param [Array<BenchmarkDriver::Metric>]
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:num_methods, # @param [Integer] num_methods - The number of methods to be defined
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:loop_count, # @param [Integer] loop_count
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:from_jit, # @param [TrueClass,FalseClass] from_jit - Whether the jit_exec() is from JIT or not
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:to_jit, # @param [TrueClass,FalseClass] to_jit - Whether the jit_exec() is to JIT or not
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)
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# Dynamically fetched and used by `BenchmarkDriver::JobParser.parse`
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class << JobParser = Module.new
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# @param [Array,String] num_methods
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# @param [Integer] loop_count
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# @param [TrueClass,FalseClass] from_jit
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# @param [TrueClass,FalseClass] to_jit
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def parse(num_methods:, loop_count:, from_jit:, to_jit:)
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if num_methods.is_a?(String)
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num_methods = eval(num_methods)
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end
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num_methods.map do |num|
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if num_methods.size > 1
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suffix = "[#{'%4d' % num}]"
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else
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suffix = "_#{num}"
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end
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Job.new(
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name: "mjit_exec_#{from_jit ? 'JT' : 'VM'}2#{to_jit ? 'JT' : 'VM'}#{suffix}",
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metrics: [METRIC],
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num_methods: num,
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loop_count: loop_count,
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from_jit: from_jit,
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to_jit: to_jit,
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)
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end
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end
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end
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# @param [BenchmarkDriver::Config::RunnerConfig] config
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# @param [BenchmarkDriver::Output] output
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# @param [BenchmarkDriver::Context] contexts
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def initialize(config:, output:, contexts:)
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@config = config
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@output = output
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@contexts = contexts
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end
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# This method is dynamically called by `BenchmarkDriver::JobRunner.run`
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# @param [Array<BenchmarkDriver::Runner::Peak::Job>] jobs
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def run(jobs)
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@output.with_benchmark do
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jobs.each do |job|
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@output.with_job(name: job.name) do
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@contexts.each do |context|
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result = BenchmarkDriver::Repeater.with_repeat(config: @config, larger_better: true, rest_on_average: :average) do
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run_benchmark(job, context: context)
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end
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value, duration = result.value
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@output.with_context(name: context.name, executable: context.executable, gems: context.gems, prelude: context.prelude) do
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@output.report(values: { METRIC => value }, duration: duration, loop_count: job.loop_count)
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end
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end
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end
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end
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end
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end
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private
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# @param [BenchmarkDriver::Runner::Ips::Job] job - loop_count is not nil
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# @param [BenchmarkDriver::Context] context
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# @return [BenchmarkDriver::Metrics]
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def run_benchmark(job, context:)
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if job.from_jit
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if job.to_jit
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benchmark = BenchmarkJT2JT.new(num_methods: job.num_methods, loop_count: job.loop_count)
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else
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raise NotImplementedError, "JT2VM is not implemented yet"
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end
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else
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if job.to_jit
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benchmark = BenchmarkVM2JT.new(num_methods: job.num_methods, loop_count: job.loop_count)
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else
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benchmark = BenchmarkVM2VM.new(num_methods: job.num_methods, loop_count: job.loop_count)
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end
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end
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duration = Tempfile.open(['benchmark_driver-result', '.txt']) do |f|
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with_script(benchmark.render(result: f.path)) do |path|
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opt = []
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if context.executable.command.any? { |c| c.start_with?('--jit') }
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opt << '--jit-min-calls=2'
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end
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IO.popen([*context.executable.command, '--disable-gems', *opt, path], &:read)
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if $?.success?
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Float(f.read)
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else
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BenchmarkDriver::Result::ERROR
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end
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end
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end
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[job.loop_count.to_f / duration, duration]
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end
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def with_script(script)
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if @config.verbose >= 2
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sep = '-' * 30
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$stdout.puts "\n\n#{sep}[Script begin]#{sep}\n#{script}#{sep}[Script end]#{sep}\n\n"
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end
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Tempfile.open(['benchmark_driver-', '.rb']) do |f|
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f.puts script
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f.close
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return yield(f.path)
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end
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end
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# @param [Integer] num_methods
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# @param [Integer] loop_count
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BenchmarkVM2VM = ::BenchmarkDriver::Struct.new(:num_methods, :loop_count) do
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# @param [String] result - A file to write result
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def render(result:)
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ERB.new(<<~EOS, trim_mode: '%').result(binding)
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% num_methods.times do |i|
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def a<%= i %>
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nil
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end
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% end
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RubyVM::MJIT.pause if defined?(RubyVM::MJIT) && RubyVM::MJIT.enabled?
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def vm
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t = Process.clock_gettime(Process::CLOCK_MONOTONIC)
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i = 0
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while i < <%= loop_count / 1000 %>
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% 1000.times do |i|
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a<%= i % num_methods %>
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% end
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i += 1
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end
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% (loop_count % 1000).times do |i|
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a<%= i % num_methods %>
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% end
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Process.clock_gettime(Process::CLOCK_MONOTONIC) - t
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end
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vm # warmup call cache
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File.write(<%= result.dump %>, vm)
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EOS
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end
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end
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private_constant :BenchmarkVM2VM
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# @param [Integer] num_methods
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# @param [Integer] loop_count
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BenchmarkVM2JT = ::BenchmarkDriver::Struct.new(:num_methods, :loop_count) do
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# @param [String] result - A file to write result
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def render(result:)
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ERB.new(<<~EOS, trim_mode: '%').result(binding)
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% num_methods.times do |i|
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def a<%= i %>
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nil
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end
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a<%= i %>
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a<%= i %> # --jit-min-calls=2
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% end
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RubyVM::MJIT.pause if defined?(RubyVM::MJIT) && RubyVM::MJIT.enabled?
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def vm
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t = Process.clock_gettime(Process::CLOCK_MONOTONIC)
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i = 0
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while i < <%= loop_count / 1000 %>
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% 1000.times do |i|
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a<%= i % num_methods %>
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% end
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i += 1
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end
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% (loop_count % 1000).times do |i|
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a<%= i % num_methods %>
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% end
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Process.clock_gettime(Process::CLOCK_MONOTONIC) - t
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end
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vm # warmup call cache
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File.write(<%= result.dump %>, vm)
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EOS
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end
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end
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private_constant :BenchmarkVM2JT
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# @param [Integer] num_methods
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# @param [Integer] loop_count
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BenchmarkJT2JT = ::BenchmarkDriver::Struct.new(:num_methods, :loop_count) do
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# @param [String] result - A file to write result
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def render(result:)
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ERB.new(<<~EOS, trim_mode: '%').result(binding)
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% num_methods.times do |i|
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def a<%= i %>
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nil
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end
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% end
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# You may need to:
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# * Increase `JIT_ISEQ_SIZE_THRESHOLD` to 10000000 in mjit.h
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# * Always return false in `inlinable_iseq_p()` of mjit_compiler.c
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def jit
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t = Process.clock_gettime(Process::CLOCK_MONOTONIC)
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i = 0
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while i < <%= loop_count / 1000 %>
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% 1000.times do |i|
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a<%= i % num_methods %>
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% end
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i += 1
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end
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% (loop_count % 1000).times do |i|
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a<%= i % num_methods %>
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% end
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Process.clock_gettime(Process::CLOCK_MONOTONIC) - t
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end
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jit
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jit
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RubyVM::MJIT.pause if defined?(RubyVM::MJIT) && RubyVM::MJIT.enabled?
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File.write(<%= result.dump %>, jit)
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EOS
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end
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end
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private_constant :BenchmarkJT2JT
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end
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@ -1,6 +0,0 @@
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type: lib/benchmark_driver/runner/mjit_exec
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num_methods: [1]
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#num_methods: (1..100).to_a + [200, 300, 400, 500, 600, 700, 800, 900, 1000]
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loop_count: 50000000
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from_jit: true
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to_jit: true
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@ -1,6 +0,0 @@
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type: lib/benchmark_driver/runner/mjit_exec
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num_methods: [1]
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#num_methods: (1..100).to_a + [200, 300, 400, 500, 600, 700, 800, 900, 1000]
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loop_count: 50000000
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from_jit: false
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to_jit: true
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@ -1,6 +0,0 @@
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type: lib/benchmark_driver/runner/mjit_exec
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num_methods: [1]
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#num_methods: (1..100).to_a + [200, 300, 400, 500, 600, 700, 800, 900, 1000]
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loop_count: 50000000
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from_jit: false
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to_jit: false
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