Module: QProf

Defined in:
lib/qprof.rb,
lib/qprof/version.rb

Constant Summary collapse

VERSION = 
'3.0.0'

Class Method Summary collapse

Class Method Details

.call(title = '') ⇒ Object 



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# File 'lib/qprof.rb', line 9

def call(title = '')
  FileUtils.mkdir_p('/tmp/qprof')
  run = "#{Time.now.to_i}-#{SecureRandom.hex(4)}"
  dump_path = "/tmp/qprof/#{run}.dump"
  graph_path = "/tmp/qprof/#{run}.html"

  StackProf.run(mode: :cpu, interval: 2, raw: true, out: dump_path) do
    @value = yield
  end

  flame_io = StringIO.new # hotman
  StackProf::Report.from_file(dump_path).print_d3_flamegraph(flame_io)
  File.write(graph_path, flame_io.string)
  Launchy.open(graph_path)

  @value
end