perf_hooks: implementation of Performance Timing API by jasnell · Pull Request #14680 · nodejs/node

An initial implementation of the Performance Timing API for Node.js.
This is the same Performance Timing API implemented by modern browsers
with a number of Node.js specific properties. The User Timing mark()
and measure() APIs are implemented, garbage collection timing, and
node startup milestone timing.

```js
const { performance } = require('perf_hooks');

performance.mark('A');
setTimeout(() => {
  performance.mark('B');
  performance.measure('A to B', 'A', 'B');
  const entry = performance.getEntriesByName('A to B', 'measure')[0];
  console.log(entry.duration);
}, 10000);
```

The implementation is at the native layer and makes use of uv_hrtime().
This should enable *eventual* integration with things like Tracing
and Inspection.

The implementation is extensible and should allow us to add new
performance entry types as we go (e.g. for measuring i/o perf,
etc).

Documentation and a test are provided.

PR-URL: #14680
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

An initial implementation of the Performance Timing API for Node.js.
This is the same Performance Timing API implemented by modern browsers
with a number of Node.js specific properties. The User Timing mark()
and measure() APIs are implemented, garbage collection timing, and
node startup milestone timing.

```js
const { performance } = require('perf_hooks');

performance.mark('A');
setTimeout(() => {
  performance.mark('B');
  performance.measure('A to B', 'A', 'B');
  const entry = performance.getEntriesByName('A to B', 'measure')[0];
  console.log(entry.duration);
}, 10000);
```

The implementation is at the native layer and makes use of uv_hrtime().
This should enable *eventual* integration with things like Tracing
and Inspection.

The implementation is extensible and should allow us to add new
performance entry types as we go (e.g. for measuring i/o perf,
etc).

Documentation and a test are provided.

PR-URL: #14680
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

Notable Changes

* build:
  * Snapshots are now re-enabled in V8
  #14875

* console:
  * Implement minimal `console.group()`.
  #14910

* deps:
  * upgrade libuv to 1.14.1
    #14866
  * update nghttp2 to v1.25.0
    #14955

* dns:
  * Add `verbatim` option to dns.lookup(). When true, results from the
    DNS resolver are passed on as-is, without the reshuffling that
    Node.js otherwise does that puts IPv4 addresses before IPv6
    addresses.
    #14731

* fs:
  * add fs.copyFile and fs.copyFileSync which allows for more efficient
    copying of files.
    #15034

* inspector:
  * Enable async stack traces
    #13870

* module:
  * Add support for ESM. This is currently behind the
    `--experimental-modules` flag and requires the .mjs extension.
    `node --experimental-modules index.mjs`
    #14369

* napi:
  * implement promise
    #14365

* os:
  * Add support for CIDR notation to the output of the
    networkInterfaces() method.
    #14307

* perf_hooks:
  * An initial implementation of the Performance Timing API for
    Node.js. This is the same Performance Timing API implemented by
    modern browsers with a number of Node.js specific properties. The
    User Timing mark() and measure() APIs are implemented, as is a
    Node.js specific flavor of the Frame Timing for measuring event
    loop duration.
    #14680

* tls:
  * multiple PFX in createSecureContext
    [#14793](#14793)

* Added new collaborators:
  * BridgeAR – Ruben Bridgewater

PR-URL: #15308

Notable Changes

* build:
  * Snapshots are now re-enabled in V8
  #14875

* console:
  * Implement minimal `console.group()`.
  #14910

* deps:
  * upgrade libuv to 1.14.1
    #14866
  * update nghttp2 to v1.25.0
    #14955

* dns:
  * Add `verbatim` option to dns.lookup(). When true, results from the
    DNS resolver are passed on as-is, without the reshuffling that
    Node.js otherwise does that puts IPv4 addresses before IPv6
    addresses.
    #14731

* fs:
  * add fs.copyFile and fs.copyFileSync which allows for more efficient
    copying of files.
    #15034

* inspector:
  * Enable async stack traces
    #13870

* module:
  * Add support for ESM. This is currently behind the
    `--experimental-modules` flag and requires the .mjs extension.
    `node --experimental-modules index.mjs`
    #14369

* napi:
  * implement promise
    #14365

* os:
  * Add support for CIDR notation to the output of the
    networkInterfaces() method.
    #14307

* perf_hooks:
  * An initial implementation of the Performance Timing API for
    Node.js. This is the same Performance Timing API implemented by
    modern browsers with a number of Node.js specific properties. The
    User Timing mark() and measure() APIs are implemented, as is a
    Node.js specific flavor of the Frame Timing for measuring event
    loop duration.
    #14680

* tls:
  * multiple PFX in createSecureContext
    [#14793](#14793)

* Added new collaborators:
  * BridgeAR – Ruben Bridgewater

PR-URL: #15308

Notable Changes

* build:
  * Snapshots are now re-enabled in V8
  nodejs#14875

* console:
  * Implement minimal `console.group()`.
  nodejs#14910

* deps:
  * upgrade libuv to 1.14.1
    nodejs#14866
  * update nghttp2 to v1.25.0
    nodejs#14955

* dns:
  * Add `verbatim` option to dns.lookup(). When true, results from the
    DNS resolver are passed on as-is, without the reshuffling that
    Node.js otherwise does that puts IPv4 addresses before IPv6
    addresses.
    nodejs#14731

* fs:
  * add fs.copyFile and fs.copyFileSync which allows for more efficient
    copying of files.
    nodejs#15034

* inspector:
  * Enable async stack traces
    nodejs#13870

* module:
  * Add support for ESM. This is currently behind the
    `--experimental-modules` flag and requires the .mjs extension.
    `node --experimental-modules index.mjs`
    nodejs#14369

* napi:
  * implement promise
    nodejs#14365

* os:
  * Add support for CIDR notation to the output of the
    networkInterfaces() method.
    nodejs#14307

* perf_hooks:
  * An initial implementation of the Performance Timing API for
    Node.js. This is the same Performance Timing API implemented by
    modern browsers with a number of Node.js specific properties. The
    User Timing mark() and measure() APIs are implemented, as is a
    Node.js specific flavor of the Frame Timing for measuring event
    loop duration.
    nodejs#14680

* tls:
  * multiple PFX in createSecureContext
    [nodejs#14793](nodejs#14793)

* Added new collaborators:
  * BridgeAR – Ruben Bridgewater

PR-URL: nodejs#15308

The node frame (aka loop) timing API did not land, it depends on
libuv/libuv#1489 which is still a WIP.

See: #14680 (comment)

PR-URL: #15641
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

The node frame (aka loop) timing API did not land, it depends on
libuv/libuv#1489 which is still a WIP.

See: #14680 (comment)

PR-URL: #15641
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

The node frame (aka loop) timing API did not land, it depends on
libuv/libuv#1489 which is still a WIP.

See: nodejs/node#14680 (comment)

PR-URL: nodejs/node#15641
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

The node frame (aka loop) timing API did not land, it depends on
libuv/libuv#1489 which is still a WIP.

See: #14680 (comment)

PR-URL: #15641
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

The node frame (aka loop) timing API did not land, it depends on
libuv/libuv#1489 which is still a WIP.

See: #14680 (comment)

PR-URL: #15641
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

The node frame (aka loop) timing API did not land, it depends on
libuv/libuv#1489 which is still a WIP.

See: #14680 (comment)

PR-URL: #15641
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>