Class: PerfCheck

Inherits:
Object
  • Object
show all
Defined in:
lib/perf_check.rb,
lib/perf_check/git.rb,
lib/perf_check/server.rb,
lib/perf_check/test_case.rb

Defined Under Namespace

Classes: Git, Server, TestCase

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ PerfCheck

Returns a new instance of PerfCheck.



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# File 'lib/perf_check.rb', line 13

def initialize
  self.options = OpenStruct.new
  self.server = Server.new
  self.test_cases = []
end

Instance Attribute Details

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/perf_check.rb', line 11

def options
  @options
end

#server ⇒ Object

Returns the value of attribute server.



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# File 'lib/perf_check.rb', line 11

def server
  @server
end

#test_cases ⇒ Object

Returns the value of attribute test_cases.



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# File 'lib/perf_check.rb', line 11

def test_cases
  @test_cases
end

Class Method Details

.normalize_resource(resource) ⇒ Object 



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# File 'lib/perf_check/git.rb', line 53

def self.normalize_resource(resource)
  resource.sub(/^([^\/])/, '/\1')
end

Instance Method Details

#add_test_case(route) ⇒ Object 



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# File 'lib/perf_check.rb', line 19

def add_test_case(route)
  route = PerfCheck.normalize_resource(route)
  test_cases.push(TestCase.new(route))
end

#print_results ⇒ Object 



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# File 'lib/perf_check.rb', line 55

def print_results
  puts("==== Results ====")
  test_cases.each do |test|
    puts(test.resource)

    if test.reference_latencies.empty?
      printf("your branch: ".rjust(15)+"%.1fms\n", test.this_latency)
      next
    end

    master_latency = sprintf('%.1fms', test.reference_latency)
    this_latency = sprintf('%.1fms', test.this_latency)

    difference = sprintf('%+.1fms', test.latency_difference)
    if test.latency_difference < 0
      formatted_change = sprintf('%.1fx', test.latency_factor)
      formatted_change = "yours is #{formatted_change} faster!"
    else
      formatted_change = sprintf('%.1fx', 1.0 / test.latency_factor)
      formatted_change = "yours is #{formatted_change} slower!!!"
    end
    formatted_change = difference + " (#{formatted_change})"

    puts("master: ".rjust(15)     + "#{master_latency}")
    puts("your branch: ".rjust(15)+ "#{this_latency}")
    puts("change: ".rjust(15)     + "#{formatted_change}")
  end
end

#run ⇒ Object 



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# File 'lib/perf_check.rb', line 35

def run
  (options.reference ? 2 : 1).times do |i|
    if i == 1
      Git.stash_if_needed
      Git.checkout_reference(options.reference)
      test_cases.each{ |x| x.latencies = x.reference_latencies }
    end

    test_cases.each do |test|
      server.restart
      if options.
        test.cookie = server.(options., test)
      end

      puts("\n\nBenchmarking #{test.resource}:")
      test.run(server, options.number_of_requests)
    end
  end
end

#sanity_check ⇒ Object 



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# File 'lib/perf_check.rb', line 24

def sanity_check
  if Git.current_branch == "master"
    puts("Yo, profiling master vs. master isn't too useful, but hey, we'll do it")
  end

  puts "="*77
  print "PERRRRF CHERRRK! Grab a ☕️  and don't touch your working tree "
  puts "(we automate git)"
  puts "="*77
end