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perf_hooks: web performance timeline compliance

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All 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>
This commit is contained in:
legendecas 2021-06-24 23:33:09 +08:00
parent 5c4e673a96
commit 062f8e3730
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GPG key ID: 321332BDA88D6AA3
91 changed files with 3844 additions and 59 deletions
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6
lib/perf_hooks.js
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@ -10,7 +10,10 @@ const {
const { PerformanceEntry } = require('internal/perf/performance_entry');
const { PerformanceObserver } = require('internal/perf/observe');
const { PerformanceMark } = require('internal/perf/usertiming');
const {
PerformanceMark,
PerformanceMeasure,
} = require('internal/perf/usertiming');
const { InternalPerformance } = require('internal/perf/performance');
const {
@ -22,6 +25,7 @@ const monitorEventLoopDelay = require('internal/perf/event_loop_delay');
module.exports = {
PerformanceEntry,
PerformanceMark,
PerformanceMeasure,
PerformanceObserver,
monitorEventLoopDelay,
createHistogram,