#PerformanceMetric

Describes the type that includes the performance metric name, metric value, and start/end timestamps.

In Lynx, several metric types are provided, such as MetricFcpEntry and MetricActualFmpEntry. Each metric type contains multiple metrics based on different starting points (for example, MetricFcpEntry includes metrics like fcp, lynxFcp, and totalFcp). To better describe the duration and timestamps of each metric, the PerformanceMetric type is designed.

#Attributes

#name

name: string;

The name of the metric, such as fcp, lynxFcp, totalFcp, etc.

#duration

duration: number;

The metric value in milliseconds with a microsecond precision(0.001ms). An example value is 100.099.

The calculation formula is: duration = endTimestamp - startTimestamp.

#startTimestampName

startTimestampName: string;

The name of the metric's start timestamp, such as loadBundleStart in LoadBundleEntry.

#startTimestamp

startTimestamp: number;

The start timestamp of the metric, an Unix timestamp in milliseconds with a microsecond precision(0.001ms). An example value is 1739594612307.429.

#endTimestampName

endTimestampName: string;

The name of the metric's end timestamp, such as paintEnd in LoadBundleEntry.

#endTimestamp

endTimestamp: number;

The end timestamp of the metric, an Unix timestamp in milliseconds with a microsecond precision(0.001ms). An example value is 1739594612307.429.

#Compatibility