Optional argsAny arguments provided for the event. Some of the event types have required argument fields, otherwise, you can put any information you wish in here. The arguments are displayed in Trace Viewer when you view an event in the analysis section.
Optional catReportedly, counter events do not have categories.
Optional cnameA fixed color name to associate with the event. If provided, cname must be one of the names listed in trace-viewer's base color scheme's [reserved color names list]https://github.com/catapult-project/catapult/blob/main/tracing/tracing/base/color_scheme.html.
Optional idWhen an id field exists, the combination of the event name and id is used as the counter name.
The name of the event, as displayed in Trace Viewer
The event type. This is a single character which changes depending on the type of event being output.
The process ID for the process that output this event.
The thread ID for the thread that output this event.
The tracing clock timestamp of the event. The timestamps are provided at microsecond granularity.
Optional ttsOptional. The thread clock timestamp of the event. The timestamps are provided at microsecond granularity.
The counter events can track a value or multiple values as they change over time. Counter events are specified with the C phase type. Each counter can be provided with multiple series of data to display. When multiple series are provided they will be displayed as a stacked area chart in Trace Viewer. Please note that counters are process-local.