js.node.perf_hooks

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Histogram	Histogram for recording values (e.g. event loop delay samples).
IntervalHistogram	A `Histogram` that is periodically updated on a given interval.
Performance	An object that can be used to collect performance metrics from the current Node.js instance. It is similar to `window.performance` in browsers.
PerformanceEntry	The constructor of this class is not exposed to users directly.
PerformanceEntryType	Type of a performance entry (`performanceEntry.entryType`).
PerformanceEvent	Events emitted by `Performance` (via `EventTarget`).
PerformanceMark	Exposes marks created via the `Performance.mark()` method.
PerformanceMarkOptions	Options for `Performance.mark`.
PerformanceMeasure	Exposes measures created via the `Performance.measure()` method.
PerformanceMeasureOptions	Options for `Performance.measure` when using the options-object form.
PerformanceNodeEntry	This class is an extension by Node.js. It is not available in Web browsers.
PerformanceNodeTiming	This property is an extension by Node.js. It is not available in Web browsers.
PerformanceObserver	`PerformanceObserver` objects provide notifications when new `PerformanceEntry` instances have been added to the Performance Timeline.
PerformanceObserverCallback	Callback invoked when a `PerformanceObserver` is notified about new entries.
PerformanceObserverEntryList	Used to provide access to the `PerformanceEntry` instances passed to a `PerformanceObserver`. The constructor of this class is not exposed to users.
PerformanceObserverObserveOptions	Options for `PerformanceObserver.observe`.
PerformanceResourceTiming	Provides detailed network timing data regarding the loading of an application's resources.
RecordableHistogram	A `Histogram` that can record values.
UVMetrics	Event loop metrics from `PerformanceNodeTiming.uvMetricsInfo`.