[chromium] Default to experimental-fully-parallel mode for chromium gpu port

https://bugs.webkit.org/show_bug.cgi?id=66606

Patch by James Robinson <jamesr@chromium.org> on 2011-08-19
Reviewed by Dirk Pranke.

The chromium GPU configuration does not (currently) contain any tests
incompatible with --experimental-fully-parallel, and this flag is a
significan speedup because of the directory canvas/philip/tests which
contains 802 tests in the same directory. Setting this option by
default on this configuration is a 2x speed in release, 44s to 22s,
and a 3x speedup in debug, 223s to 77s, on linux on a 16 core machine.

* Scripts/webkitpy/layout_tests/port/chromium_gpu.py:
* Scripts/webkitpy/layout_tests/port/chromium_gpu_unittest.py:
* Scripts/webkitpy/layout_tests/run_webkit_tests.py:

git-svn-id: svn://svn.chromium.org/blink/trunk@93463 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Tools/ChangeLog

+2011-08-19  James Robinson  <jamesr@chromium.org>
+
+        [chromium] Default to experimental-fully-parallel mode for chromium gpu port
+        https://bugs.webkit.org/show_bug.cgi?id=66606
+
+        Reviewed by Dirk Pranke.
+
+        The chromium GPU configuration does not (currently) contain any tests
+        incompatible with --experimental-fully-parallel, and this flag is a
+        significan speedup because of the directory canvas/philip/tests which
+        contains 802 tests in the same directory. Setting this option by
+        default on this configuration is a 2x speed in release, 44s to 22s,
+        and a 3x speedup in debug, 223s to 77s, on linux on a 16 core machine.
+
+        * Scripts/webkitpy/layout_tests/port/chromium_gpu.py:
+        * Scripts/webkitpy/layout_tests/port/chromium_gpu_unittest.py:
+        * Scripts/webkitpy/layout_tests/run_webkit_tests.py:
+
 2011-08-19  Sheriff Bot  <webkit.review.bot@gmail.com>
 
         Unreviewed, rolling out r93426.

third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/chromium_gpu.py

@@ -65,6 +65,8 @@ def _set_gpu_options(port):
         port._options.accelerated_compositing = True
     if port.get_option('accelerated_2d_canvas') is None:
         port._options.accelerated_2d_canvas = True
+    if port.get_option('experimental_fully_parallel') is None:
+        port._options.experimental_fully_parallel = True
 
     # FIXME: Remove this after http://codereview.chromium.org/5133001/ is enabled
     # on the bots.

third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/chromium_gpu_unittest.py

@@ -67,6 +67,7 @@ class ChromiumGpuTest(unittest.TestCase):
             port = chromium_gpu.get(port_name=port_name, options=mock_options)
         self.assertTrue(port._options.accelerated_compositing)
         self.assertTrue(port._options.accelerated_2d_canvas)
+        self.assertTrue(port._options.experimental_fully_parallel)
         self.assertEqual(port._options.builder_name, 'foo - GPU')
 
         self.assertTrue(port.name().startswith(port_name))

third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/run_webkit_tests.py

@@ -377,8 +377,12 @@ def parse_args(args=None):
             default=None, help=("controls worker model. Valid values are "
                                 "'inline' and 'processes'.")),
         optparse.make_option("-f", "--experimental-fully-parallel",
-            action="store_true", default=False,
+            action="store_true",
             help="run all tests in parallel"),
+        optparse.make_option("--no-experimental-fully-parallel",
+            action="store_false",
+            dest="experimental_fully_parallel",
+            help="do not run all tests in parallel"),
         optparse.make_option("--exit-after-n-failures", type="int", default=500,
             help="Exit after the first N failures instead of running all "
             "tests"),