062f8e3730All API introduced in this PR are compliant with web [performance-timeline](https://w3c.github.io/performance-timeline) spec. "performance-timeline" is listed as supported web spec in the doc https://nodejs.org/docs/latest/api/perf_hooks.html#perf_hooks_performance_measurement_apis. Changes summary: 1. Add new supported wpt test subsets: user-timing and performance-timeline. 2. Add support for `Performance.getEntries`, `Performance.getEntriesByName` and `Performance.getEntriesByType` to synchronously fetch buffered performance entries. This means the user should invoke `Performance.clearMarks` and `Performance.clearMeasures` to clear buffered entries to prevent from those entries been kept alive forever. 3. Add support (again after https://github.com/nodejs/node/pull/37136) for `buffered` flags for `PerformanceObserver`. 3. Fixes `PerformanceMark` and `PerformanceMeasure` wpt compliance issues. 4. Only user-created performance entries will be buffered globally. This behavior should be compliant with https://w3c.github.io/timing-entrytypes-registry/#registry. With the new ability to fetch user-created performance entries synchronously, the issues raised in https://github.com/nodejs/diagnostics/issues/464#issuecomment-861920116 could also be fixed. PR-URL: https://github.com/nodejs/node/pull/39297 Reviewed-By: James M Snell <jasnell@gmail.com>
39 lines
2 KiB
JavaScript
39 lines
2 KiB
JavaScript
// META: script=resources/user-timing-helper.js
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async_test(function (t) {
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let mark_entries = [];
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const expected_entries =
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[{ entryType: "mark", name: "mark1", detail: null},
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{ entryType: "mark", name: "mark2", detail: null},
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{ entryType: "mark", name: "mark3", detail: null},
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{ entryType: "mark", name: "mark4", detail: null},
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{ entryType: "mark", name: "mark5", detail: null},
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{ entryType: "mark", name: "mark6", detail: {}},
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{ entryType: "mark", name: "mark7", detail: {info: 'abc'}},
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{ entryType: "mark", name: "mark8", detail: null, startTime: 234.56},
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{ entryType: "mark", name: "mark9", detail: {count: 3}, startTime: 345.67}];
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const observer = new PerformanceObserver(
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t.step_func(function (entryList, obs) {
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mark_entries =
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mark_entries.concat(entryList.getEntries());
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if (mark_entries.length >= expected_entries.length) {
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checkEntries(mark_entries, expected_entries);
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observer.disconnect();
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t.done();
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}
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})
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);
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self.performance.clearMarks();
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observer.observe({entryTypes: ["mark"]});
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const returned_entries = [];
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returned_entries.push(self.performance.mark("mark1"));
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returned_entries.push(self.performance.mark("mark2", undefined));
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returned_entries.push(self.performance.mark("mark3", null));
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returned_entries.push(self.performance.mark("mark4", {}));
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returned_entries.push(self.performance.mark("mark5", {detail: null}));
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returned_entries.push(self.performance.mark("mark6", {detail: {}}));
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returned_entries.push(self.performance.mark("mark7", {detail: {info: 'abc'}}));
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returned_entries.push(self.performance.mark("mark8", {startTime: 234.56}));
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returned_entries.push(self.performance.mark("mark9", {detail: {count: 3}, startTime: 345.67}));
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checkEntries(returned_entries, expected_entries);
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}, "mark entries' detail and startTime are customizable.");
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