[test] Add an option to the perf runner to support running with the internal profiler.

Enhance the perf runner to run with the profiler and print the summary for each d8 run. This automates running the profiler with multiple benchmarks.

BUG=None
LOG=N
TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1327033003

Cr-Commit-Position: refs/heads/master@{#30720}

diff --git a/tools/run_perf.py b/tools/run_perf.py
index 3133168..a747b92 100755 (executable)
--- a/tools/run_perf.py
+++ b/tools/run_perf.py
@@ -102,6 +102,7 @@ import math
 import optparse
 import os
 import re
+import subprocess
 import sys
 
 from testrunner.local import commands
@@ -457,7 +458,10 @@ class RunnableConfig(GraphConfig):
 
   def GetCommand(self, shell_dir, extra_flags=None):
     # TODO(machenbach): This requires +.exe if run on windows.
+    extra_flags = extra_flags or []
     cmd = [os.path.join(shell_dir, self.binary)]
+    if self.binary != 'd8' and '--prof' in self.extra_flags:
+      print "Profiler supported only on a benchmark run with d8"
     return cmd + self.GetCommandFlags(extra_flags=extra_flags)
 
   def Run(self, runner, trybot):
@@ -640,6 +644,19 @@ class DesktopPlatform(Platform):
       print output.stderr
     if output.timed_out:
       print ">>> Test timed out after %ss." % runnable.timeout
+    if '--prof' in self.extra_flags:
+      if utils.GuessOS() == "linux":
+        tick_tools = os.path.abspath(os.path.join(shell_dir, "..", "..",
+                                                  "tools",
+                                                  "linux-tick-processor"))
+      elif utils.GuessOS() == "macos":
+        tick_tools = os.path.abspath(os.path.join(shell_dir, "..", "..",
+                                                  "tools",
+                                                  "mac-tick-processor"))
+      else:
+        print "Profiler option currently supported on Linux and Mac OS."
+      prof_cmd = tick_tools + " --only-summary"
+      subprocess.check_call(prof_cmd, shell=True)
     return output.stdout