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- Method resolution order:
- LinuxPlatformBackend
- telemetry.internal.platform.posix_platform_backend.PosixPlatformBackend
- telemetry.internal.platform.desktop_platform_backend.DesktopPlatformBackend
- telemetry.internal.platform.linux_based_platform_backend.LinuxBasedPlatformBackend
- telemetry.internal.platform.platform_backend.PlatformBackend
- __builtin__.object
Methods defined here:
- CanFlushIndividualFilesFromSystemCache(self)
- CanLaunchApplication(self, application)
- CanMeasurePerApplicationPower(self)
- CanMonitorPower(self)
- FlushEntireSystemCache(self)
- GetArchName(*args, **kwargs)
- GetOSName(self)
- GetOSVersionName(*args, **kwargs)
- HasBeenThermallyThrottled(self)
- InstallApplication(self, application)
- IsThermallyThrottled(self)
- ReadMsr(self, msr_number, start=0, length=64)
- StartMonitoringPower(self, browser)
- StopMonitoringPower(self)
- __init__(self)
Class methods defined here:
- IsPlatformBackendForHost(cls) from __builtin__.type
Methods inherited from telemetry.internal.platform.posix_platform_backend.PosixPlatformBackend:
- GetChildPids(self, pid)
- Returns a list of child pids of |pid|.
- GetCommandLine(self, pid)
- GetFileContents(self, path)
- GetPsOutput(self, columns, pid=None)
- Returns output of the 'ps' command as a list of lines.
Subclass should override this function.
Args:
columns: A list of require columns, e.g., ['pid', 'pss'].
pid: If not None, returns only the information of the process
with the pid.
- IsApplicationRunning(self, application)
- LaunchApplication(self, application, parameters=None, elevate_privilege=False)
- RunCommand(self, args)
Methods inherited from telemetry.internal.platform.desktop_platform_backend.DesktopPlatformBackend:
- FlushSystemCacheForDirectory(self, directory)
- GetDeviceTypeName(self)
Methods inherited from telemetry.internal.platform.linux_based_platform_backend.LinuxBasedPlatformBackend:
- GetClockTicks(*args, **kwargs)
- Returns the number of clock ticks per second.
The proper way is to call os.sysconf('SC_CLK_TCK') but that is not easy to
do on Android/CrOS. In practice, nearly all Linux machines have a USER_HZ
of 100, so just return that.
- GetCpuStats(self, pid)
- GetCpuTimestamp(self)
- GetMemoryStats(self, pid)
- GetSystemCommitCharge(self)
- # Get the commit charge in kB.
- GetSystemTotalPhysicalMemory(*args, **kwargs)
Static methods inherited from telemetry.internal.platform.linux_based_platform_backend.LinuxBasedPlatformBackend:
- ParseCStateSample(sample)
- Parse a single c-state residency sample.
Args:
sample: A sample of c-state residency times to be parsed. Organized as
a dictionary mapping CPU name to a string containing all c-state
names, the times in each state, the latency of each state, and the
time at which the sample was taken all separated by newlines.
Ex: {'cpu0': 'C0
C1
5000
2000
20
30
1406673171'}
Returns:
Dictionary associating a c-state with a time.
Methods inherited from telemetry.internal.platform.platform_backend.PlatformBackend:
- CanCaptureVideo(self)
- CanMonitorNetworkData(self)
- CanMonitorThermalThrottling(self)
- CanTakeScreenshot(self)
- CooperativelyShutdown(self, proc, app_name)
- Cooperatively shut down the given process from subprocess.Popen.
Currently this is only implemented on Windows. See
crbug.com/424024 for background on why it was added.
Args:
proc: a process object returned from subprocess.Popen.
app_name: on Windows, is the prefix of the application's window
class name that should be searched for. This helps ensure
that only the application's windows are closed.
Returns True if it is believed the attempt succeeded.
- DidCreateBrowser(self, browser, browser_backend)
- DidStartBrowser(self, browser, browser_backend)
- FlushDnsCache(self)
- GetNetworkData(self, browser)
- GetRemotePort(self, port)
- InitPlatformBackend(self)
- IsCooperativeShutdownSupported(self)
- Indicates whether CooperativelyShutdown, below, is supported.
It is not necessary to implement it on all platforms.
- IsDisplayTracingSupported(self)
- PathExists(self, path, timeout=None, retries=None)
- Tests whether the given path exists on the target platform.
Args:
path: path in request.
timeout: timeout.
retries: num of retries.
Return:
Whether the path exists on the target platform.
- PurgeUnpinnedMemory(self)
- SetFullPerformanceModeEnabled(self, enabled)
- SetPlatform(self, platform)
- StartDisplayTracing(self)
- Start gathering a trace with frame timestamps close to physical
display.
- StartVideoCapture(self, min_bitrate_mbps)
- StopDisplayTracing(self)
- Stop gathering a trace with frame timestamps close to physical display.
Returns a raw tracing events that contains the timestamps of physical
display.
- StopVideoCapture(self)
- TakeScreenshot(self, file_path)
- WillCloseBrowser(self, browser, browser_backend)
Class methods inherited from telemetry.internal.platform.platform_backend.PlatformBackend:
- CreatePlatformForDevice(cls, device, finder_options) from __builtin__.type
- SupportsDevice(cls, device) from __builtin__.type
- Returns whether this platform backend supports intialization from the
device.
Data descriptors inherited from telemetry.internal.platform.platform_backend.PlatformBackend:
- __dict__
- dictionary for instance variables (if defined)
- __weakref__
- list of weak references to the object (if defined)
- forwarder_factory
- is_host_platform
- is_video_capture_running
- network_controller_backend
- platform
- running_browser_backends
- tracing_controller_backend
- wpr_ca_cert_path
- wpr_http_device_port
- wpr_https_device_port
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