Revert of [tools] add --pretty switch to run_perf.py

tools/run_perf.py

Index: tools/run_perf.py
diff --git a/tools/run_perf.py b/tools/run_perf.py
index 3f34d8b56489adb79b40b2849542c4bec207b3e1..db4245f499fc07c3a32f435a78ec08d5f06f58a3 100755
--- a/tools/run_perf.py
+++ b/tools/run_perf.py
@@ -405,10 +405,7 @@
     # TODO(machenbach): Currently that makes only sense for the leaf level.
     # Multiple place holders for multiple levels are not supported.
     if parent.results_regexp:
-      try:
-        regexp_default = parent.results_regexp % re.escape(suite["name"])
-      except TypeError:
-        regexp_default = parent.results_regexp
+      regexp_default = parent.results_regexp % re.escape(suite["name"])
     else:
       regexp_default = None
     self.results_regexp = suite.get("results_regexp", regexp_default)
@@ -590,25 +587,6 @@
     else:
       return DesktopPlatform(options)
 
-  def GetPrettyFormatted(self, options):
-    return self
-
-  def PreExecution(self):
-    pass
-
-  def PostExecution(self):
-    pass
-
-  def PreTests(self, node, path):
-    pass
-
-  def PrintResult(self, result):
-    pass
-
-  def _PrintStdout(self, title, output):
-    print title % "Stdout"
-    print output.stdout
-
   def _Run(self, runnable, count, no_patch=False):
     raise NotImplementedError()  # pragma: no cover
 
@@ -631,72 +609,15 @@
       return stdout, None
 
 
-class PlatformFormattedMixin(object):
-  """
-  Helper mixin that adds formatted output used when running benchmarks
-  with the --pretty flag.
-  """
-
-  def _PrintStdout(self, title, output):
-    sys.stdout.write("\r")
-    if output.exit_code != 0:
-      print output.stdout
-      return
-    # Assume the time is on the last line
-    result_line = output.stdout.splitlines()[-1].strip()
-    sys.stdout.write(result_line)
-    # Fill with spaces up to 80 characters.
-    sys.stdout.write(' '*max(0, 80-len(result_line)))
-    sys.stdout.flush()
-
-  def _GetMean(self, trace):
-    results = trace['results']
-    if len(results) == 0:
-      return 0
-    # If the tests provided a stddev the results consists of one single average
-    # value, so return that instead.
-    if trace['stddev']:
-      return results[0]
-    # For a non-zero length results list calculate the average here.
-    return sum([float(x) for x in results]) / len(results)
-
-  def _GetDeviation(self, trace):
-    # If the benchmark provided a stddev use that directly.
-    stddev = trace['stddev']
-    if stddev:
-      return stddev
-    # If no stddev was provided calculate it from the results.
-    results = trace['results']
-    if len(results) == 0:
-      return 0
-    mean = self._GetMean(trace)
-    square_deviation = sum((float(x)-mean)**2 for x in results)
-    return (square_deviation / len(results)) ** 0.5
-
-  def PrintResult(self, result):
-    if result.errors:
-      print "\r:Errors:"
-      print "\n".join(set(result.errors))
-    else:
-      trace = result.traces[0]
-      average = self._GetMean(trace)
-      stdev = self._GetDeviation(trace)
-      stdev_percentage = 100 * stdev / average if average != 0 else 0
-      result_string = "\r    %s +/- %3.2f%% %s" % (
-                        average, stdev_percentage, trace['units'])
-      sys.stdout.write(result_string)
-      # Fill with spaces up to 80 characters.
-      sys.stdout.write(' '*max(0, 80-len(result_string)))
-      sys.stdout.write("\n")
-      sys.stdout.flush()
-
-
 class DesktopPlatform(Platform):
   def __init__(self, options):
     super(DesktopPlatform, self).__init__(options)
 
-  def GetPrettyFormatted(self, options):
-    return PrettyFormattedDesktopPlatform(options)
+  def PreExecution(self):
+    pass
+
+  def PostExecution(self):
+    pass
 
   def PreTests(self, node, path):
     if isinstance(node, RunnableConfig):
@@ -715,7 +636,8 @@
       print title % "OSError"
       print e
       return ""
-    self._PrintStdout(title, output)
+    print title % "Stdout"
+    print output.stdout
     if output.stderr:  # pragma: no cover
       # Print stderr for debugging.
       print title % "Stderr"
@@ -732,10 +654,6 @@
     return output.stdout
 
 
-class PrettyFormattedDesktopPlatform(PlatformFormattedMixin, DesktopPlatform):
-  pass
-
-
 class AndroidPlatform(Platform):  # pragma: no cover
   DEVICE_DIR = "/data/local/tmp/v8/"
 
@@ -752,9 +670,6 @@
       options.device = str(devices[0])
     self.adb_wrapper = adb_wrapper.AdbWrapper(options.device)
     self.device = device_utils.DeviceUtils(self.adb_wrapper)
-
-  def GetPrettyFormatted(self, options):
-    return PrettyFormattedAndroidPlatform(options)
 
   def PreExecution(self):
     perf = perf_control.PerfControl(self.device)
@@ -842,10 +757,6 @@
     for resource in node.resources:
       self._PushFile(bench_abs, resource, bench_rel)
 
-  def _PrintStdout(self, title, output):
-    print title % "Stdout"
-    print "\n".join(output)
-
   def _Run(self, runnable, count, no_patch=False):
     suffix = ' - without patch' if no_patch else ''
     target_dir = "bin_no_patch" if no_patch else "bin"
@@ -869,15 +780,13 @@
           timeout=runnable.timeout,
           retries=0,
       )
-      self._PrintStdout(title, output)
+      stdout = "\n".join(output)
+      print title % "Stdout"
+      print stdout
     except device_errors.CommandTimeoutError:
       print ">>> Test timed out after %ss." % runnable.timeout
       stdout = ""
     return stdout
-
-
-class PrettyFormattedAndroidPlatform(PlatformFormattedMixin, AndroidPlatform):
-  pass
 
 
 # TODO: Implement results_processor.
@@ -909,9 +818,6 @@
                     default="out")
   parser.add_option("--outdir-no-patch",
                     help="Base directory with compile output without patch")
-  parser.add_option("--pretty",
-                    help="Print human readable output",
-                    default=False, action="store_true")
   parser.add_option("--binary-override-path",
                     help="JavaScript engine binary. By default, d8 under "
                     "architecture-specific build dir. "
@@ -967,8 +873,6 @@
     options.shell_dir_no_patch = None
 
   platform = Platform.GetPlatform(options)
-  if options.pretty:
-    platform = platform.GetPrettyFormatted(options)
 
   results = Results()
   results_no_patch = Results()
@@ -1010,7 +914,6 @@
       # Let runnable iterate over all runs and handle output.
       result, result_no_patch = runnable.Run(
           Runner, trybot=options.shell_dir_no_patch)
-      platform.PrintResult(result)
       results += result
       results_no_patch += result_no_patch
     platform.PostExecution()
@@ -1018,14 +921,12 @@
   if options.json_test_results:
     results.WriteToFile(options.json_test_results)
   else:  # pragma: no cover
-    if not options.pretty:
-      print results
+    print results
 
   if options.json_test_results_no_patch:
     results_no_patch.WriteToFile(options.json_test_results_no_patch)
   else:  # pragma: no cover
-    if not options.pretty:
-      print results_no_patch
+    print results_no_patch
 
   return min(1, len(results.errors))