node:perf_hooks

El módulo comparte su línea de tiempo de rendimiento y sus constructores con los globales web de Performance:

import { performance } from "node:perf_hooks";

performance.mark("start");
performance.measure("work", "start");
console.log(performance.getEntriesByName("work").length); // 1

Las exportaciones incluyen performance, now, auxiliares de marca/medida/consulta/borrado, constructores de Performance, nodeTiming, createHistogram, monitorEventLoopDelay, eventLoopUtilization y timerify.

performance === globalThis.performance, y los constructores del módulo son los mismos objetos que sus equivalentes globales. nodeTiming también se incluye en performance.getEntriesByType("node").

Notas de compatibilidad

constants es un objeto vacío.
nodeTiming informa de los hitos de arranque en milisegundos relativos al inicio del proceso; v8Start, environment, loopExit e idleTime valen cero.

Reference

Status: Partial · Not measured · since 1.1.0

Exports

Export	Kind	Status	Notes
`PerformanceEntry`	class	Full	`name`, `entryType`, `startTime`, `duration`, `detail`, `toJSON()`
`PerformanceMark`	class	Full
`PerformanceMeasure`	class	Full
`PerformanceNodeTiming`	class	Full	`nodeStart`, `v8Start`, `environment`, `bootstrapComplete`, `loopStart`, `loopExit`, `idleTime`
`PerformanceObserverEntryList`	class	Full	`getEntries()`, `getEntriesByName()`, `getEntriesByType()`
`PerformanceObserver`	class	Full	`observe()`, `disconnect()`, `takeRecords()`, `PerformanceObserver.supportedEntryTypes`
`now()`	function	Full	Returns the current high-resolution millisecond timestamp relative to timeOrigin
`mark()`	function	Full	Creates a performance mark with the given name
`measure()`	function	Full	Creates a performance measure between two marks or timestamps
`getEntries()`	function	Full	Returns a list of all performance entries
`getEntriesByName()`	function	Full	Returns performance entries filtered by name
`getEntriesByType()`	function	Full	Returns performance entries filtered by type (“mark” or “measure”)
`clearMarks()`	function	Full	Removes all marks, or only marks with the given name
`clearMeasures()`	function	Full	Removes all measures, or only measures with the given name
`timeOrigin`	property	Full	The high-resolution millisecond timestamp at which the process started
`nodeTiming`	property	Full	Timing information about the Node.js process lifecycle

Not implemented

Performance, PerformanceResourceTiming.