perf_hooks: complete overhaul of the implementation

* Update the user timing implementation to conform to
  User Timing Level 3.
* Reimplement user timing and timerify with pure JavaScript
  implementations
* Simplify the C++ implementation for gc and http2 perf
* Runtime deprecate additional perf entry properties
  in favor of the standard detail argument
* Disable the `buffered` option on PerformanceObserver,
  all entries are queued and dispatched on setImmediate.
  Only entries with active observers are buffered.
* This does remove the user timing and timerify
  trace events. Because the trace_events are still
  considered experimental, those can be removed without
  a deprecation cycle. They are removed to improve
  performance and reduce complexity.

Old: `perf_hooks/usertiming.js n=100000: 92,378.01249733355`
New: perf_hooks/usertiming.js n=100000: 270,393.5280638482`

PR-URL: https://github.com/nodejs/node/pull/37136
Refs: https://github.com/nodejs/diagnostics/issues/464
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/benchmark/perf_hooks/usertiming.js b/benchmark/perf_hooks/usertiming.js
new file mode 100644
index 00000000000..ae797351ad7
--- /dev/null
+++ b/benchmark/perf_hooks/usertiming.js
@@ -0,0 +1,31 @@
+'use strict';
+
+const common = require('../common.js');
+
+const {
+  PerformanceObserver,
+  performance,
+} = require('perf_hooks');
+
+const bench = common.createBenchmark(main, {
+  n: [1e5]
+});
+
+function test() {
+  performance.mark('a');
+  setImmediate(() => {
+    performance.mark('b');
+    performance.measure('a to b', 'a', 'b');
+  });
+}
+
+function main({ n }) {
+  const obs = new PerformanceObserver(() => {
+    bench.end(n);
+  });
+  obs.observe({ entryTypes: ['measure'], buffered: true });
+
+  bench.start();
+  for (let i = 0; i < n; i++)
+    test();
+}