Class: Gravitext::PerfTest::PrintListener

Inherits:
Object
  • Object
show all
Includes:
CalcUtil
Defined in:
lib/gravitext-util/perftest.rb

Overview

Listen for various events from the Harness and print results to console

Direct Known Subclasses

LogListener

Constant Summary

Constants included from CalcUtil

CalcUtil::NaN

Instance Method Summary collapse

Methods included from CalcUtil

#latency_change, #throughput_change

Constructor Details

#initialize(out = $stdout) ⇒ PrintListener

Status is written via out << (default $stdout)



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# File 'lib/gravitext-util/perftest.rb', line 270

def initialize( out = $stdout )
  @out = out
end

Instance Method Details

#begin(harness, factories) ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 274

def begin( harness, factories )
  @out << "Concurrent testing: #{harness.thread_count} threads."
  new_line
  @nwidth = ( factories.map { |f| f.name.length } << 4 ).max
end

#comparison_complete_run(executor, prior) ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 318

def comparison_complete_run( executor, prior )
  print_result( executor, prior )
end

#comparison_next_series(harness) ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 310

def comparison_next_series( harness )
  print_separator
end

#comparison_start_run(executor) ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 314

def comparison_start_run( executor )
  print_result_start( executor )
end

#comparisons_begin(harness, run_counts) ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 303

def comparisons_begin( harness, run_counts )
  @out << ( "Comparison runs (%d iterations):" %
            [ harness.final_iterations ] )
  new_line
  print_header
end

#comparisons_end(harness, executor_sums) ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 322

def comparisons_end( harness, executor_sums )
  print_separator( '=' )
  executor_sums.each_index do |s|
    print_result_start( executor_sums[s] )
    print_result( executor_sums[s], ( executor_sums.first unless s.zero? ) )
  end
end

#new_line ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 330

def new_line
  @out << "\n"
end

#print_header ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 334

def print_header
  @out << ( "%-#{@nwidth}s %-6s %-7s %-6s %8s %10s(%6s) %-9s (%6s)" %
            [ "Test",
              "Count",
              "Time",
              "R Sum",
              "~R Value",
              "Throughput",
              "Change",
              "~Latency",
              "Change" ] )
  new_line
  print_separator( '=' )
end

#print_result(exec, prior = nil, out = @out) ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 360

def print_result( exec, prior = nil, out = @out )
  out << ( "%7s %6s %6s/r %6sr/s (%6s) %7s/r (%6s)" %
           [ exec.duration,
             Metric::format( exec.result_sum ),
             Metric::format( exec.result_sum.to_f /
                             exec.runs_executed ),
             Metric::format( exec.mean_throughput ),
             Metric::format_difference( throughput_change(exec,prior) ),
             exec.mean_latency,
             Metric::format_difference( latency_change(exec,prior) ) ] )
  new_line
end

#print_result_start(exec, out = @out) ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 354

def print_result_start( exec, out = @out )
  out << ( "%-#{@nwidth}s %6s " %
           [ exec.factory.name,
             Metric::format( exec.runs_target ) ] )
end

#print_separator(char = '-') ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 349

def print_separator( char = '-' )
  @out << ( char * ( @nwidth + 69 ) )
  new_line
end

#warmup_complete_run(executor, prior) ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 291

def warmup_complete_run( executor, prior )
  print_result( executor, prior )
end

#warmup_next_series(harness) ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 295

def warmup_next_series( harness )
  print_separator
end

#warmup_start_run(executor) ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 287

def warmup_start_run( executor )
  print_result_start( executor )
end

#warmups_begin(harness) ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 280

def warmups_begin( harness )
  @out << ( "Warmup min %gs (change tolerance: %g) per test:" %
            [ harness.warmup_total_target, harness.warmup_tolerance ] )
  new_line
  print_header
end

#warmups_end(final_executors) ⇒ Object 



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# File 'lib/gravitext-util/perftest.rb', line 299

def warmups_end( final_executors )
  new_line
end