Stack trace:

Traceback (most recent call last):
  File "c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\internal\story_runner.py", line 98, in _RunStoryAndProcessErrorIfNeeded
    state.WillRunStory(story)
  File "c:\b\s\w\ir\third_party\catapult\common\py_trace_event\py_trace_event\trace_event_impl\decorators.py", line 52, in traced_function
    return func(*args, **kwargs)
  File "c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\page\shared_page_state.py", line 247, in WillRunStory
    self._StartBrowser(page)
  File "c:\b\s\w\ir\third_party\catapult\common\py_trace_event\py_trace_event\trace_event_impl\decorators.py", line 52, in traced_function
    return func(*args, **kwargs)
  File "c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\page\shared_page_state.py", line 205, in _StartBrowser
    self._test.WillStartBrowser(self.platform)
  File "c:\b\s\w\ir\third_party\catapult\common\py_trace_event\py_trace_event\trace_event_impl\decorators.py", line 52, in traced_function
    return func(*args, **kwargs)
  File "c:\b\s\w\ir\tools\perf\benchmarks\dromaeo.py", line 31, in WillStartBrowser
    self._power_metric = power.PowerMetric(platform)
  File "c:\b\s\w\ir\tools\perf\metrics\power.py", line 39, in __init__
    self._MeasureQuiescentPower(quiescent_measurement_time_s)
  File "c:\b\s\w\ir\tools\perf\metrics\power.py", line 59, in _MeasureQuiescentPower
    if (not self._platform.CanMonitorPower() or
  File "c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\core\platform.py", line 256, in CanMonitorPower
    return self._platform_backend.CanMonitorPower()
  File "c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\internal\platform\win_platform_backend.py", line 362, in CanMonitorPower
    return self._power_monitor.CanMonitorPower()
  File "c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\internal\platform\power_monitor\msr_power_monitor.py", line 135, in CanMonitorPower
    return self._CheckMSRs()
  File "c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\internal\platform\power_monitor\msr_power_monitor.py", line 86, in _CheckMSRs
    if self._PackageEnergyJoules() <= 0:
  File "c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\internal\platform\power_monitor\msr_power_monitor.py", line 73, in _PackageEnergyJoules
    return (self._backend.ReadMsr(MSR_PKG_ENERGY_STATUS, 0, 32) *
  File "c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\internal\platform\win_platform_backend.py", line 404, in ReadMsr
    self._StartMsrServerIfNeeded()
  File "c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\internal\platform\win_platform_backend.py", line 377, in _StartMsrServerIfNeeded
    _InstallWinRing0()
  File "c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\internal\platform\win_platform_backend.py", line 89, in _InstallWinRing0
    zip_file.extract(dll_file_name, executable_dir)
  File "c:\infra-system\bin\lib\zipfile.py", line 1031, in extract
    return self._extract_member(member, path, pwd)
  File "c:\infra-system\bin\lib\zipfile.py", line 1086, in _extract_member
    file(targetpath, "wb") as target:
IOError: [Errno 13] Permission denied: 'c:\\infra-system\\bin\\WinRing0x64.dll'

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8968542241067939648

=== BISECT JOB RESULTS ===
NO Test failure found

Bisect Details
  Configuration: win_8_perf_bisect
  Benchmark    : dromaeo.domcoremodify
  Metric       : dom/http___dromaeo.com?dom-modify

Revision             Exit Code      N
chromium@500297      0 +- N/A       2      good
chromium@500360      0 +- N/A       2      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...dromaeo.com.dom.modify dromaeo.domcoremodify

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8968542241067939648


For feedback, file a bug with component Speed>Bisection

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