util: improve `TextDecoder` performance #45294

anonrig · 2022-11-03T01:47:14Z

Improves the text decoder by 32%. Happy to update the benchmark according to the reviews.

Benchmark CI: https://ci.nodejs.org/view/Node.js%20benchmark/job/benchmark-node-micro-benchmarks/1211/

17:23:35                                                                             confidence improvement accuracy (*)    (**)   (***)
17:23:35 util/text-decoder.js n=1000000 len=16384 ignoreBOM=0 encoding='iso-8859-3'         ***     20.18 %       ±7.84% ±10.44% ±13.61%
17:23:35 util/text-decoder.js n=1000000 len=16384 ignoreBOM=0 encoding='latin1'             ***     16.72 %       ±7.16%  ±9.54% ±12.44%
17:23:35 util/text-decoder.js n=1000000 len=16384 ignoreBOM=0 encoding='utf-8'              ***     14.24 %       ±7.64% ±10.16% ±13.23%
17:23:35 util/text-decoder.js n=1000000 len=16384 ignoreBOM=1 encoding='iso-8859-3'         ***     19.93 %       ±7.42%  ±9.89% ±12.92%
17:23:35 util/text-decoder.js n=1000000 len=16384 ignoreBOM=1 encoding='latin1'             ***     21.41 %       ±8.10% ±10.79% ±14.06%
17:23:35 util/text-decoder.js n=1000000 len=16384 ignoreBOM=1 encoding='utf-8'              ***     15.44 %       ±8.85% ±11.78% ±15.37%
17:23:35 util/text-decoder.js n=1000000 len=256 ignoreBOM=0 encoding='iso-8859-3'           ***     26.89 %       ±6.35%  ±8.45% ±11.01%
17:23:35 util/text-decoder.js n=1000000 len=256 ignoreBOM=0 encoding='latin1'               ***     27.35 %       ±7.95% ±10.64% ±13.99%
17:23:35 util/text-decoder.js n=1000000 len=256 ignoreBOM=0 encoding='utf-8'                ***     26.06 %       ±7.02%  ±9.34% ±12.17%
17:23:35 util/text-decoder.js n=1000000 len=256 ignoreBOM=1 encoding='iso-8859-3'           ***     20.31 %       ±8.01% ±10.66% ±13.88%
17:23:35 util/text-decoder.js n=1000000 len=256 ignoreBOM=1 encoding='latin1'               ***     26.52 %       ±6.93%  ±9.25% ±12.11%
17:23:35 util/text-decoder.js n=1000000 len=256 ignoreBOM=1 encoding='utf-8'                ***     20.07 %       ±7.89% ±10.51% ±13.69%
17:23:35 util/text-decoder.js n=1000000 len=524288 ignoreBOM=0 encoding='iso-8859-3'                -1.38 %       ±5.57%  ±7.41%  ±9.64%
17:23:35 util/text-decoder.js n=1000000 len=524288 ignoreBOM=0 encoding='latin1'                    -0.70 %       ±6.39%  ±8.50% ±11.06%
17:23:35 util/text-decoder.js n=1000000 len=524288 ignoreBOM=0 encoding='utf-8'                      2.67 %       ±5.81%  ±7.73% ±10.08%
17:23:35 util/text-decoder.js n=1000000 len=524288 ignoreBOM=1 encoding='iso-8859-3'                -0.31 %       ±6.09%  ±8.10% ±10.55%
17:23:35 util/text-decoder.js n=1000000 len=524288 ignoreBOM=1 encoding='latin1'                    -5.15 %       ±6.94%  ±9.24% ±12.03%
17:23:35 util/text-decoder.js n=1000000 len=524288 ignoreBOM=1 encoding='utf-8'                      1.20 %       ±6.66%  ±8.88% ±11.57%
17:23:35 
17:23:36 Be aware that when doing many comparisons the risk of a false-positive
17:23:36 result increases. In this case, there are 18 comparisons, you can thus
17:23:36 expect the following amount of false-positive results:
17:23:36   0.90 false positives, when considering a   5% risk acceptance (*, **, ***),
17:23:36   0.18 false positives, when considering a   1% risk acceptance (**, ***),
17:23:36   0.02 false positives, when considering a 0.1% risk acceptance (***)

cc @nodejs/buffer @nodejs/util @nodejs/performance

src/node_i18n.cc

benchmark/util/text-decoder.js

github-actions · 2022-11-03T02:29:08Z

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github-actions · 2022-11-03T13:11:20Z

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benchmark/util/text-decoder.js

src/node_i18n.cc

benchmark/util/text-decoder.js

Notable changes: * deps: * update ICU to 72.1 (Michaël Zasso) [#45068](#45068) * doc: * add lukekarrys to collaborators (Luke Karrys) [#45180](#45180) * add anonrig to collaborators (Yagiz Nizipli) [#45002](#45002) * fs: * (SEMVER-MINOR) fs: add recursive watch to linux (Yagiz Nizipli) [#45098](#45098) * lib: * drop fetch experimental warning (Matteo Collina) [#45287](#45287) * util * (SEMVER-MINOR) add MIME utilities (Bradley Farias) [#21128](#21128) * improve textdecoder decode performance (Yagiz Nizipli) [#45294](#45294) PR-URL: #45269

Notable changes: * deps: * update ICU to 72.1 (Michaël Zasso) [#45068](#45068) * doc: * add lukekarrys to collaborators (Luke Karrys) [#45180](#45180) * add anonrig to collaborators (Yagiz Nizipli) [#45002](#45002) * fs: * (SEMVER-MINOR) fs: add recursive watch to linux (Yagiz Nizipli) [#45098](#45098) * lib: * drop fetch experimental warning (Matteo Collina) [#45287](#45287) * test_runner: * support function mocking (Colin Ihrig) [#45326](#45326) * util * (SEMVER-MINOR) add MIME utilities (Bradley Farias) [#21128](#21128) * improve textdecoder decode performance (Yagiz Nizipli) [#45294](#45294) PR-URL: #45269

PR-URL: nodejs#45294 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Minwoo Jung <nodecorelab@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>

PR-URL: #45294 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Minwoo Jung <nodecorelab@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>

Notable changes: Add support for externally shared js builtins: By default Node.js is built so that all dependencies are bundled into the Node.js binary itself. Some Node.js distributions prefer to manage dependencies externally. There are existing build options that allow dependencies with native code to be externalized. This commit adds additional options so that dependencies with JavaScript code (including WASM) can also be externalized. This addition does not affect binaries shipped by the Node.js project but will allow other distributions to externalize additional dependencies when needed. Contributed by Michael Dawson in #44376 fs.watch recursive support on Linux: `fs.watch` supports recursive watch using the `recursive: true` option. ```js const watcher = fs.watch(testDirectory, { recursive: true }); watcher.on('change', function(event, filename) { }); ``` Contributed by Yagiz Nizipli in #45098 Support function mocking on Node.js test runner: The `node:test` module supports mocking during testing via a top-level `mock` object. ```js test('spies on an object method', (t) => { const number = { value: 5, add(a) { return this.value + a; }, }; t.mock.method(number, 'add'); assert.strictEqual(number.add(3), 8); assert.strictEqual(number.add.mock.calls.length, 1); }); ``` Contributed by Colin Ihrig in #45326 Other notable changes: buffer: * (SEMVER-MINOR) introduce File (Khafra) #45139 build: * disable v8 snapshot compression by default (Joyee Cheung) #45716 crypto: * update root certificates (Luigi Pinca) #45490 deps: * update ICU to 72.1 (Michaël Zasso) #45068 doc: * add doc-only deprecation for headers/trailers setters (Rich Trott) #45697 * add Rafael to the tsc (Michael Dawson) #45691 * deprecate use of invalid ports in `url.parse` (Antoine du Hamel) #45576 * add lukekarrys to collaborators (Luke Karrys) #45180 * add anonrig to collaborators (Yagiz Nizipli) #45002 * deprecate url.parse() (Rich Trott) #44919 lib: * drop fetch experimental warning (Matteo Collina) #45287 net: * (SEMVER-MINOR) add autoSelectFamily and autoSelectFamilyAttemptTimeout options (Paolo Insogna) #44731 * src: * (SEMVER-MINOR) add uvwasi version (Jithil P Ponnan) #45639 * (SEMVER-MINOR) add initial shadow realm support (Chengzhong Wu) #42869 test_runner: * (SEMVER-MINOR) add t.after() hook (Colin Ihrig) #45792 * (SEMVER-MINOR) don't use a symbol for runHook() (Colin Ihrig) #45792 tls: * (SEMVER-MINOR) add "ca" property to certificate object (Ben Noordhuis) #44935 * remove trustcor root ca certificates (Ben Noordhuis) #45776 tools: * update certdata.txt (Luigi Pinca) #45490 util: * add fast path for utf8 encoding (Yagiz Nizipli) #45412 * improve textdecoder decode performance (Yagiz Nizipli) #45294 * (SEMVER-MINOR) add MIME utilities (#21128) (Bradley Farias) #21128 PR-URL: TBD

Notable changes: Add support for externally shared js builtins: By default Node.js is built so that all dependencies are bundled into the Node.js binary itself. Some Node.js distributions prefer to manage dependencies externally. There are existing build options that allow dependencies with native code to be externalized. This commit adds additional options so that dependencies with JavaScript code (including WASM) can also be externalized. This addition does not affect binaries shipped by the Node.js project but will allow other distributions to externalize additional dependencies when needed. Contributed by Michael Dawson in #44376 fs.watch recursive support on Linux: `fs.watch` supports recursive watch using the `recursive: true` option. ```js const watcher = fs.watch(testDirectory, { recursive: true }); watcher.on('change', function(event, filename) { }); ``` Contributed by Yagiz Nizipli in #45098 Support function mocking on Node.js test runner: The `node:test` module supports mocking during testing via a top-level `mock` object. ```js test('spies on an object method', (t) => { const number = { value: 5, add(a) { return this.value + a; }, }; t.mock.method(number, 'add'); assert.strictEqual(number.add(3), 8); assert.strictEqual(number.add.mock.calls.length, 1); }); ``` Contributed by Colin Ihrig in #45326 Other notable changes: buffer: * (SEMVER-MINOR) introduce File (Khafra) #45139 build: * disable v8 snapshot compression by default (Joyee Cheung) #45716 crypto: * update root certificates (Luigi Pinca) #45490 deps: * update ICU to 72.1 (Michaël Zasso) #45068 doc: * add doc-only deprecation for headers/trailers setters (Rich Trott) #45697 * add Rafael to the tsc (Michael Dawson) #45691 * deprecate use of invalid ports in `url.parse` (Antoine du Hamel) #45576 * add lukekarrys to collaborators (Luke Karrys) #45180 * add anonrig to collaborators (Yagiz Nizipli) #45002 * deprecate url.parse() (Rich Trott) #44919 lib: * drop fetch experimental warning (Matteo Collina) #45287 net: * (SEMVER-MINOR) add autoSelectFamily and autoSelectFamilyAttemptTimeout options (Paolo Insogna) #44731 * src: * (SEMVER-MINOR) add uvwasi version (Jithil P Ponnan) #45639 * (SEMVER-MINOR) add initial shadow realm support (Chengzhong Wu) #42869 test_runner: * (SEMVER-MINOR) add t.after() hook (Colin Ihrig) #45792 * (SEMVER-MINOR) don't use a symbol for runHook() (Colin Ihrig) #45792 tls: * (SEMVER-MINOR) add "ca" property to certificate object (Ben Noordhuis) #44935 * remove trustcor root ca certificates (Ben Noordhuis) #45776 tools: * update certdata.txt (Luigi Pinca) #45490 util: * add fast path for utf8 encoding (Yagiz Nizipli) #45412 * improve textdecoder decode performance (Yagiz Nizipli) #45294 * (SEMVER-MINOR) add MIME utilities (#21128) (Bradley Farias) #21128 PR-URL: #46025

PR-URL: #45294 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Minwoo Jung <nodecorelab@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>

Notable changes: Add support for externally shared js builtins: By default Node.js is built so that all dependencies are bundled into the Node.js binary itself. Some Node.js distributions prefer to manage dependencies externally. There are existing build options that allow dependencies with native code to be externalized. This commit adds additional options so that dependencies with JavaScript code (including WASM) can also be externalized. This addition does not affect binaries shipped by the Node.js project but will allow other distributions to externalize additional dependencies when needed. Contributed by Michael Dawson in #44376 fs.watch recursive support on Linux: `fs.watch` supports recursive watch using the `recursive: true` option. ```js const watcher = fs.watch(testDirectory, { recursive: true }); watcher.on('change', function(event, filename) { }); ``` Contributed by Yagiz Nizipli in #45098 Support function mocking on Node.js test runner: The `node:test` module supports mocking during testing via a top-level `mock` object. ```js test('spies on an object method', (t) => { const number = { value: 5, add(a) { return this.value + a; }, }; t.mock.method(number, 'add'); assert.strictEqual(number.add(3), 8); assert.strictEqual(number.add.mock.calls.length, 1); }); ``` Contributed by Colin Ihrig in #45326 Other notable changes: buffer: * (SEMVER-MINOR) introduce File (Khafra) #45139 build: * disable v8 snapshot compression by default (Joyee Cheung) #45716 crypto: * update root certificates (Luigi Pinca) #45490 deps: * update ICU to 72.1 (Michaël Zasso) #45068 doc: * add doc-only deprecation for headers/trailers setters (Rich Trott) #45697 * add Rafael to the tsc (Michael Dawson) #45691 * deprecate use of invalid ports in `url.parse` (Antoine du Hamel) #45576 * add lukekarrys to collaborators (Luke Karrys) #45180 * add anonrig to collaborators (Yagiz Nizipli) #45002 * deprecate url.parse() (Rich Trott) #44919 lib: * drop fetch experimental warning (Matteo Collina) #45287 net: * (SEMVER-MINOR) add autoSelectFamily and autoSelectFamilyAttemptTimeout options (Paolo Insogna) #44731 * src: * (SEMVER-MINOR) add uvwasi version (Jithil P Ponnan) #45639 * (SEMVER-MINOR) add initial shadow realm support (Chengzhong Wu) #42869 test_runner: * (SEMVER-MINOR) add t.after() hook (Colin Ihrig) #45792 * (SEMVER-MINOR) don't use a symbol for runHook() (Colin Ihrig) #45792 tls: * (SEMVER-MINOR) add "ca" property to certificate object (Ben Noordhuis) #44935 * remove trustcor root ca certificates (Ben Noordhuis) #45776 tools: * update certdata.txt (Luigi Pinca) #45490 util: * add fast path for utf8 encoding (Yagiz Nizipli) #45412 * improve textdecoder decode performance (Yagiz Nizipli) #45294 * (SEMVER-MINOR) add MIME utilities (#21128) (Bradley Farias) #21128 PR-URL: #46025

Notable changes: Add support for externally shared js builtins: By default Node.js is built so that all dependencies are bundled into the Node.js binary itself. Some Node.js distributions prefer to manage dependencies externally. There are existing build options that allow dependencies with native code to be externalized. This commit adds additional options so that dependencies with JavaScript code (including WASM) can also be externalized. This addition does not affect binaries shipped by the Node.js project but will allow other distributions to externalize additional dependencies when needed. Contributed by Michael Dawson in #44376 Introduce `File`: The File class is part of the [FileAPI](https://w3c.github.io/FileAPI/). It can be used anywhere a Blob can, for example in `URL.createObjectURL` and `FormData`. It contains two properties that Blobs do not have: `lastModified`, the last time the file was modified in ms, and `name`, the name of the file. Contributed by Khafra in #45139 Support function mocking on Node.js test runner: The `node:test` module supports mocking during testing via a top-level `mock` object. ```js test('spies on an object method', (t) => { const number = { value: 5, add(a) { return this.value + a; }, }; t.mock.method(number, 'add'); assert.strictEqual(number.add(3), 8); assert.strictEqual(number.add.mock.calls.length, 1); }); ``` Contributed by Colin Ihrig in #45326 Other notable changes: build: * disable v8 snapshot compression by default (Joyee Cheung) #45716 crypto: * update root certificates (Luigi Pinca) #45490 deps: * update ICU to 72.1 (Michaël Zasso) #45068 doc: * add doc-only deprecation for headers/trailers setters (Rich Trott) #45697 * add Rafael to the tsc (Michael Dawson) #45691 * deprecate use of invalid ports in `url.parse` (Antoine du Hamel) #45576 * add lukekarrys to collaborators (Luke Karrys) #45180 * add anonrig to collaborators (Yagiz Nizipli) #45002 * deprecate url.parse() (Rich Trott) #44919 lib: * drop fetch experimental warning (Matteo Collina) #45287 net: * (SEMVER-MINOR) add autoSelectFamily and autoSelectFamilyAttemptTimeout options (Paolo Insogna) #44731 * src: * (SEMVER-MINOR) add uvwasi version (Jithil P Ponnan) #45639 * (SEMVER-MINOR) add initial shadow realm support (Chengzhong Wu) #42869 test_runner: * (SEMVER-MINOR) add t.after() hook (Colin Ihrig) #45792 * (SEMVER-MINOR) don't use a symbol for runHook() (Colin Ihrig) #45792 tls: * (SEMVER-MINOR) add "ca" property to certificate object (Ben Noordhuis) #44935 * remove trustcor root ca certificates (Ben Noordhuis) #45776 tools: * update certdata.txt (Luigi Pinca) #45490 util: * add fast path for utf8 encoding (Yagiz Nizipli) #45412 * improve textdecoder decode performance (Yagiz Nizipli) #45294 * (SEMVER-MINOR) add MIME utilities (#21128) (Bradley Farias) #21128 PR-URL: #46025

PR-URL: #45294 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Minwoo Jung <nodecorelab@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>

Notable changes: Add support for externally shared js builtins: By default Node.js is built so that all dependencies are bundled into the Node.js binary itself. Some Node.js distributions prefer to manage dependencies externally. There are existing build options that allow dependencies with native code to be externalized. This commit adds additional options so that dependencies with JavaScript code (including WASM) can also be externalized. This addition does not affect binaries shipped by the Node.js project but will allow other distributions to externalize additional dependencies when needed. Contributed by Michael Dawson in #44376 Introduce `File`: The File class is part of the [FileAPI](https://w3c.github.io/FileAPI/). It can be used anywhere a Blob can, for example in `URL.createObjectURL` and `FormData`. It contains two properties that Blobs do not have: `lastModified`, the last time the file was modified in ms, and `name`, the name of the file. Contributed by Khafra in #45139 Support function mocking on Node.js test runner: The `node:test` module supports mocking during testing via a top-level `mock` object. ```js test('spies on an object method', (t) => { const number = { value: 5, add(a) { return this.value + a; }, }; t.mock.method(number, 'add'); assert.strictEqual(number.add(3), 8); assert.strictEqual(number.add.mock.calls.length, 1); }); ``` Contributed by Colin Ihrig in #45326 Other notable changes: build: * disable v8 snapshot compression by default (Joyee Cheung) #45716 crypto: * update root certificates (Luigi Pinca) #45490 deps: * update ICU to 72.1 (Michaël Zasso) #45068 doc: * add doc-only deprecation for headers/trailers setters (Rich Trott) #45697 * add Rafael to the tsc (Michael Dawson) #45691 * deprecate use of invalid ports in `url.parse` (Antoine du Hamel) #45576 * add lukekarrys to collaborators (Luke Karrys) #45180 * add anonrig to collaborators (Yagiz Nizipli) #45002 * deprecate url.parse() (Rich Trott) #44919 lib: * drop fetch experimental warning (Matteo Collina) #45287 net: * (SEMVER-MINOR) add autoSelectFamily and autoSelectFamilyAttemptTimeout options (Paolo Insogna) #44731 * src: * (SEMVER-MINOR) add uvwasi version (Jithil P Ponnan) #45639 * (SEMVER-MINOR) add initial shadow realm support (Chengzhong Wu) #42869 test_runner: * (SEMVER-MINOR) add t.after() hook (Colin Ihrig) #45792 * (SEMVER-MINOR) don't use a symbol for runHook() (Colin Ihrig) #45792 tls: * (SEMVER-MINOR) add "ca" property to certificate object (Ben Noordhuis) #44935 * remove trustcor root ca certificates (Ben Noordhuis) #45776 tools: * update certdata.txt (Luigi Pinca) #45490 util: * add fast path for utf8 encoding (Yagiz Nizipli) #45412 * improve textdecoder decode performance (Yagiz Nizipli) #45294 * (SEMVER-MINOR) add MIME utilities (#21128) (Bradley Farias) #21128 PR-URL: #46025

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[v18.x backport] backport utf8 performance improvements #45650

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