perf_hooks: reduce overhead of new user timings

H4ad · H4ad · commit f6ff45884818 · 2023-09-27T22:24:31.000-03:00
diff --git a/lib/internal/perf/performance_entry.js b/lib/internal/perf/performance_entry.js
@@ -138,4 +138,5 @@ module.exports = {
   isPerformanceEntry,
   PerformanceNodeEntry,
   createPerformanceNodeEntry,
+  kSkipThrow,
 };
diff --git a/lib/internal/perf/usertiming.js b/lib/internal/perf/usertiming.js
@@ -2,16 +2,14 @@
 
 const {
   ObjectDefineProperties,
-  ObjectSetPrototypeOf,
   SafeMap,
   SafeSet,
   SafeArrayIterator,
   Symbol,
   SymbolToStringTag,
-  ReflectConstruct,
 } = primordials;
 
-const { initPerformanceEntry, PerformanceEntry } = require('internal/perf/performance_entry');
+const { initPerformanceEntry, PerformanceEntry, kSkipThrow } = require('internal/perf/performance_entry');
 const { now } = require('internal/perf/utils');
 const { enqueue, bufferUserTiming } = require('internal/perf/observe');
 const nodeTiming = require('internal/perf/nodetiming');
@@ -69,7 +67,7 @@ function getMark(name) {
   return ts;
 }
 
-class PerformanceMark {
+class PerformanceMark extends PerformanceEntry {
   constructor(name, options = kEmptyObject) {
     if (arguments.length === 0) {
       throw new ERR_MISSING_ARGS('name');
@@ -89,6 +87,7 @@ class PerformanceMark {
     detail = detail != null ?
       structuredClone(detail) :
       null;
+    super(kSkipThrow);
     initPerformanceEntry(this, name, 'mark', startTime, 0);
     this[kDetail] = detail;
   }
@@ -108,8 +107,7 @@ class PerformanceMark {
     };
   }
 }
-ObjectSetPrototypeOf(PerformanceMark, PerformanceEntry);
-ObjectSetPrototypeOf(PerformanceMark.prototype, PerformanceEntry.prototype);
+
 ObjectDefineProperties(PerformanceMark.prototype, {
   detail: kEnumerableProperty,
   [SymbolToStringTag]: {
@@ -120,8 +118,19 @@ ObjectDefineProperties(PerformanceMark.prototype, {
 });
 
 class PerformanceMeasure extends PerformanceEntry {
-  constructor() {
-    throw new ERR_ILLEGAL_CONSTRUCTOR();
+  constructor(
+    skipThrowSymbol = undefined,
+    name = undefined,
+    type = undefined,
+    start = undefined,
+    duration = undefined,
+  ) {
+    if (skipThrowSymbol !== kSkipThrow) {
+      throw new ERR_ILLEGAL_CONSTRUCTOR();
+    }
+
+    super(skipThrowSymbol);
+    initPerformanceEntry(this, name, type, start, duration);
   }
 
   get detail() {
@@ -139,10 +148,11 @@ ObjectDefineProperties(PerformanceMeasure.prototype, {
 });
 
 function createPerformanceMeasure(name, start, duration, detail) {
-  return ReflectConstruct(function PerformanceMeasure() {
-    initPerformanceEntry(this, name, 'measure', start, duration);
-    this[kDetail] = detail;
-  }, [], PerformanceMeasure);
+  const measure = new PerformanceMeasure(kSkipThrow, name, 'measure', start, duration);
+
+  measure[kDetail] = detail;
+
+  return measure;
 }
 
 function mark(name, options) {
