class RubyProf::AbstractPrinter

def print_header(thread)
  @output << "Measure Mode: %s\n" % @result.measure_mode_string
  @output << "Thread ID: %d\n" % thread.id
  @output << "Fiber ID: %d\n" % thread.fiber_id unless thread.id == thread.fiber_id
  @output << "Total: %0.6f\n" % thread.total_time
  @output << "Sort by: #{sort_method}\n"
  @output << "\n"
  print_column_headers
end