Module tracing 

Structs

GetCategoriesReturns

Gets supported tracing categories.

GetTrackEventDescriptorReturns

Return a descriptor for all available tracing categories.

RecordClockSyncMarkerParams

Record a clock sync marker in the trace.

RequestMemoryDumpParams

Request a global memory dump.

RequestMemoryDumpReturns

Request a global memory dump.

StartParams

Start trace events collection.

TraceConfig

Enums

MemoryDumpLevelOfDetail

Details exposed when memory request explicitly declared. Keep consistent with memory_dump_request_args.h and memory_instrumentation.mojom

StreamCompression

Compression type to use for traces returned via streams.

StreamFormat

Data format of a trace. Can be either the legacy JSON format or the protocol buffer format. Note that the JSON format will be deprecated soon.

TracingBackend

Backend type to use for tracing. ‘chrome’ uses the Chrome-integrated tracing service and is supported on all platforms. ‘system’ is only supported on Chrome OS and uses the Perfetto system tracing service. ‘auto’ chooses ‘system’ when the perfettoConfig provided to Tracing.start specifies at least one non-Chrome data source; otherwise uses ‘chrome’.

Type Aliases

MemoryDumpConfig

Configuration for memory dump. Used only when “memory-infra” category is enabled.