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SystemInfo

Experimental

The SystemInfo domain defines methods and events for querying low-level system information.

Commands

SystemInfo.getInfo

Returns information about the system.

Return Object
Name Type Description
gpu GPUInfo Information about the GPUs on the system.
modelName string A platform-dependent description of the model of the machine. On Mac OS, this is, for
example, 'MacBookPro'. Will be the empty string if not supported.
modelVersion string A platform-dependent description of the version of the machine. On Mac OS, this is, for
example, '10.1'. Will be the empty string if not supported.
commandLine string The command line string used to launch the browser. Will be the empty string if not
supported.

SystemInfo.getFeatureState

Returns information about the feature state.

Parameters
Name Type Description
featureState string
Return Object
Name Type Description
featureEnabled boolean

SystemInfo.getProcessInfo

Returns information about all running processes.

Return Object
Name Type Description
processInfo array<ProcessInfo> An array of process info blocks.

Types

GPUDevice

(object)

Describes a single graphics processor (GPU).

Properties
Name Type Description
vendorId number PCI ID of the GPU vendor, if available; 0 otherwise.
deviceId number PCI ID of the GPU device, if available; 0 otherwise.
subSysId (optional) number Sub sys ID of the GPU, only available on Windows.
revision (optional) number Revision of the GPU, only available on Windows.
vendorString string String description of the GPU vendor, if the PCI ID is not available.
deviceString string String description of the GPU device, if the PCI ID is not available.
driverVendor string String description of the GPU driver vendor.
driverVersion string String description of the GPU driver version.

Size

(object)

Describes the width and height dimensions of an entity.

Properties
Name Type Description
width integer Width in pixels.
height integer Height in pixels.

VideoDecodeAcceleratorCapability

(object)

Describes a supported video decoding profile with its associated minimum and
maximum resolutions.

Properties
Name Type Description
profile string Video codec profile that is supported, e.g. VP9 Profile 2.
maxResolution Size Maximum video dimensions in pixels supported for this |profile|.
minResolution Size Minimum video dimensions in pixels supported for this |profile|.

VideoEncodeAcceleratorCapability

(object)

Describes a supported video encoding profile with its associated maximum
resolution and maximum framerate.

Properties
Name Type Description
profile string Video codec profile that is supported, e.g H264 Main.
maxResolution Size Maximum video dimensions in pixels supported for this |profile|.
maxFramerateNumerator integer Maximum encoding framerate in frames per second supported for this
|profile|, as fraction's numerator and denominator, e.g. 24/1 fps,
24000/1001 fps, etc.
maxFramerateDenominator integer

SubsamplingFormat

(string)

YUV subsampling type of the pixels of a given image.

Allowed Values
  • yuv420
  • yuv422
  • yuv444

ImageType

(string)

Image format of a given image.

Allowed Values
  • jpeg
  • webp
  • unknown

GPUInfo

(object)

Provides information about the GPU(s) on the system.

Properties
Name Type Description
devices array<GPUDevice> The graphics devices on the system. Element 0 is the primary GPU.
auxAttributes (optional) object An optional dictionary of additional GPU related attributes.
featureStatus (optional) object An optional dictionary of graphics features and their status.
driverBugWorkarounds array<string> An optional array of GPU driver bug workarounds.
videoDecoding array<VideoDecodeAcceleratorCapability> Supported accelerated video decoding capabilities.
videoEncoding array<VideoEncodeAcceleratorCapability> Supported accelerated video encoding capabilities.

ProcessInfo

(object)

Represents process info.

Properties
Name Type Description
type string Specifies process type.
id integer Specifies process id.
cpuTime number Specifies cumulative CPU usage in seconds across all threads of the
process since the process start.

Summary