system_health.memory_desktop on ATI GPU on Mac on Mac-10.11 failing on chromium.perf/Mac Pro 10.11 Perf

Builders failed on: 
- Mac Pro 10.11 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Mac%20Pro%2010.11%20Perf

Regression ranges:
chromium:
451276 - 451303

Failed swarming task:
https://chromium-swarm.appspot.com/user/task/349843479f19f210

Snippet:
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2017-02-27 06:06:36.427 Google Chrome[72841:1075066] Call stack:
(
    "+callStackSymbols disabled for performance reasons"
)
2017-02-27 06:06:36.830 Google Chrome[72841:1075066] Errors logged by ksadmin: KSKeyedPersistentStore store directory does not exist. [com.google.UpdateEngine.CommonErrorDomain:501 - '/Library/Google/GoogleSoftwareUpdate/TicketStore' - 'KSKeyedPersistentStore.m:372']
KSPersistentTicketStore failed to load tickets. (productID: com.google.Chrome) [com.google.UpdateEngine.CoreErrorDomain:1051 - '/Library/Google/GoogleSoftwareUpdate/TicketStore/Keystone.ticketstore'] (KSKeyedPersistentStore store directory does not exist. - '/Library/Google/GoogleSoftwareUpdate/TicketStore' [com.google.UpdateEngine.CommonErrorDomain:501])
ksadmin cannot access the ticket store:<KSUpdateError:0x100514400
	domain="com.google.UpdateEngine.CoreErrorDomain"
	code=1051
	userInfo={
		function = "-[KSProductKeyedStore(ProtectedMethods) errorForStoreError:productID:message:timeoutMessage:]";
		date = 2017-02-27 14:06:36 +0000;
		productids = {(
			"com.google.Chrome"
		)};
		filename = "KSProductKeyedStore.m";
		line = 91;
		NSFilePath = "/Library/Google/GoogleSoftwareUpdate/TicketStore/Keystone.ticketstore";
		NSUnderlyingError = <KSError:0x100510630
			domain="com.google.UpdateEngine.CommonErrorDomain"
			code=501
			userInfo={
				date = 2017-02-27 14:06:36 +0000;
				line = 372;
				filename = "KSKeyedPersistentStore.m";
				function = "-[KSKeyedPersistentStore(PrivateMethods) validateStorePath]";
				NSFilePath = "/Library/Google/GoogleSoftwareUpdate/TicketStore";
				NSLocalizedDescription = "KSKeyedPersistentStore store directory does not exist.";
			}
		>;
		NSLocalizedDescription = "KSPersistentTicketStore failed to load tickets.";
	}
>

INFO:root:*********** END OF BROWSER STANDARD OUTPUT ************
INFO:root:********************* BROWSER LOG *********************
INFO:root:No log file
INFO:root:***************** END OF BROWSER LOG ******************
Traceback (most recent call last):
  File "/b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/internal/story_runner.py", line 81, in _RunStoryAndProcessErrorIfNeeded
    state.WillRunStory(story)
  File "/b/s/w/irZFQlUs/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py", line 75, in traced_function
    return func(*args, **kwargs)
  File "/b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/page/shared_page_state.py", line 234, in WillRunStory
    self.browser.tabs[0].WaitForDocumentReadyStateToBeComplete()
  File "/b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/internal/browser/tab_list.py", line 18, in __getitem__
    return self._tab_list_backend.__getitem__(index)
  File "/b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend_list.py", line 64, in __getitem__
    return self.GetBackendFromContextId(context_id)
  File "/b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend_list.py", line 78, in GetBackendFromContextId
    raise e
TimeoutException: <unprintable TimeoutException object>

INFO:root:Chrome version: 3026
INFO:root:Try printing formatted exception: None None None

Exception raised when cleaning story run: 

Traceback (most recent call last):
  _RunStoryAndProcessErrorIfNeeded at /b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/internal/story_runner.py:111
    test.DidRunStory(state.platform)
  DidRunStory at /b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/web_perf/timeline_based_measurement.py:315
    platform.tracing_controller.StopTracing()
  StopTracing at /b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/core/tracing_controller.py:47
    return self._tracing_controller_backend.StopTracing()
  StopTracing at /b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/internal/platform/tracing_controller_backend.py:140
    '\n'.join(raised_exception_messages))
Error: Exceptions raised when trying to stop tracing:
Traceback (most recent call last):
  File "/b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/internal/platform/tracing_controller_backend.py", line 128, in StopTracing
    agent.CollectAgentTraceData(builder)
  File "/b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/internal/platform/tracing_agent/chrome_tracing_agent.py", line 247, in CollectAgentTraceData
    '\n'.join(raised_exception_messages))
ChromeTracingStoppedError: Exceptions raised when trying to collect Chrome devtool tracing:
Error when collecting Chrome tracing on devtools at port 49565:
Traceback (most recent call last):
  File "/b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/internal/platform/tracing_agent/chrome_tracing_agent.py", line 236, in CollectAgentTraceData
    client.CollectChromeTracingData(trace_data_builder)
  File "/b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/devtools_client_backend.py", line 370, in CollectChromeTracingData
    self._tracing_backend.CollectTraceData(trace_data_builder, timeout)
  File "/b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/tracing_backend.py", line 230, in CollectTraceData
    self._CollectTracingData(trace_data_builder, timeout)
  File "/b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/tracing_backend.py", line 268, in _CollectTracingData
    'the timeout amount.' % elapsed_time)
TracingTimeoutException: Only received partial trace data due to timeout after 30.0023741722 seconds. If the trace data is big, you may want to increase the timeout amount.

Locals:
  agent                     : <telemetry.internal.platform.tracing_controller_backend.TracingControllerBackend object at 0x10fb82ed0>
  builder                   : <telemetry.timeline.trace_data.TraceDataBuilder object at 0x113be8490>
  raised_exception_messages : ['Traceback (most recent call last):\n  File "/b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/internal/platform/tracing_controller_backend.py", line 128, in StopTracing\n    agent.CollectAgentTraceData(builder)\n  File "/b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/internal/platform/tracing_agent/chrome_tracing_agent.py", line 247, in CollectAgentTraceData\n    \'\\n\'.join(raised_exception_messages))\nChromeTracingStoppedError: Exceptions raised when trying to collect Chrome devtool  ... nds/chrome_inspector/tracing_backend.py", line 230, in CollectTraceData\n    self._CollectTracingData(trace_data_builder, timeout)\n  File "/b/s/w/irZFQlUs/third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/tracing_backend.py", line 268, in _CollectTracingData\n    \'the timeout amount.\' % elapsed_time)\nTracingTimeoutException: Only received partial trace data due to timeout after 30.0023741722 seconds. If the trace data is big, you may want to increase the timeout amount.\n\n'] (truncated)

[  FAILED  ] load:news:nytimes (151239 ms)
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