1187 Commits

Author SHA1 Message Date
Brian White
74291e4a7b
buffer: improve from() performance
PR-URL: https://github.com/nodejs/node/pull/31615
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
2020-02-08 21:40:49 -05:00
Brian White
b862a0c6d6
benchmark: check for and fix multiple end()
PR-URL: https://github.com/nodejs/node/pull/31624
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
2020-02-08 21:36:31 -05:00
Sam Roberts
fe3975783c
http: strip trailing OWS from header values
HTTP header values can have trailing OWS, but it should be stripped.  It
is not semantically part of the header's value, and if treated as part
of the value, it can cause spurious inequality between expected and
actual header values.

Note that a single SPC of leading OWS is common before the field-value,
and it is already handled by the HTTP parser by stripping all leading
OWS. It is only the trailing OWS that must be stripped by the parser
user.

	header-field   = field-name ":" OWS field-value OWS
	    ; https://tools.ietf.org/html/rfc7230#section-3.2
	OWS            = *( SP / HTAB )
	    ; https://tools.ietf.org/html/rfc7230#section-3.2.3

Fixes: https://hackerone.com/reports/730779

PR-URL: https://github.com/nodejs-private/node-private/pull/189
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
2020-02-06 15:22:50 +01:00
Sam Roberts
f8e7551295
benchmark: support optional headers with wrk
wrk did not support sending optional headers, they were silently
ignored. This appears to be an oversight, they were supported for
autocannon.

PR-URL: https://github.com/nodejs-private/node-private/pull/189
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
2020-02-06 15:22:49 +01:00
Denys Otrishko
f7a1ef6fb5 benchmark: clean up config resolution in multiple benchmarks
This removes 'to Number' casting in multiple benchmarks (which is
handled by the benchmark runner) and cleans up some var usage in changed
benchmarks.

PR-URL: https://github.com/nodejs/node/pull/31581
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2020-02-02 19:45:02 -08:00
Anna Henningsen
ab9e89439e benchmark: add MessagePort benchmark
Add a raw `MessagePort` benchmark that does not ping back and forth
between different threads, unlike the `echo.js` benchmark, as there
are some performance differences between single-threaded and multi-
threaded operation, and a single-threaded Environment can be somewhat
easier to work with when profiling.

PR-URL: https://github.com/nodejs/node/pull/31568
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2020-01-31 19:51:01 -08:00
Rich Trott
5cf789e554 test,benchmark: fix test-benchmark-zlib
PR-URL: https://github.com/nodejs/node/pull/31538
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
2020-01-29 19:16:16 -08:00
Daniele Belardi
0f8941962d benchmark: use let and const instead of var
Use let and const in domain, es, events, fixtures, fs, http,
http2 and misc.

PR-URL: https://github.com/nodejs/node/pull/31518
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2020-01-28 19:59:41 -08:00
Brian White
2170259940 buffer: improve concat() performance
PR-URL: https://github.com/nodejs/node/pull/31522
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2020-01-28 19:57:20 -08:00
Brian White
59a1981a22 crypto: improve randomBytes() performance
PR-URL: https://github.com/nodejs/node/pull/31519
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2020-01-28 06:56:16 -08:00
Brian White
886965963a
deps: switch to chromium's zlib implementation
This implementation provides optimizations not included upstream.

PR-URL: https://github.com/nodejs/node/pull/31201
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
2020-01-26 18:47:02 -05:00
Rich Trott
085a5c7638 benchmark: fix getStringWidth() benchmark
8fb5fe28a45cc884567cd39e3b2f6b4272917af broke the benchmark for
getStringWidth(). This fixes it up by updating the argument to
`require()` to retrieve `getStringWidth()` from the new internal module
location.

PR-URL: https://github.com/nodejs/node/pull/31476
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
2020-01-23 10:52:53 -08:00
Rich Trott
d2683ede83 benchmark: add default type in getstringwidth.js
This fixes a benchmark test that was recently broken by a breaking
change on the master branch.

Fixes: https://github.com/nodejs/node/issues/31372

PR-URL: https://github.com/nodejs/node/pull/31377
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
2020-01-15 21:59:57 -08:00
legendecas
b3b0ae565a benchmark: benchmarking impacts of async hooks on promises
PR-URL: https://github.com/nodejs/node/pull/31188
Refs: https://github.com/nodejs/diagnostics/issues/124
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
2020-01-08 06:18:30 -08:00
dnlup
57a1ca99ab benchmark: use let instead of var in dgram
PR-URL: https://github.com/nodejs/node/pull/31175
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>
2020-01-05 19:30:33 -08:00
Ruben Bridgewater
f64842adeb doc: use code markup/markdown in headers
This also allows us to remove backslash escaping for `[` and `]`
inside of header code, which makes the bare markdown more readable.

Refs: https://github.com/nodejs/node/pull/31086

PR-URL: https://github.com/nodejs/node/pull/31149
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>
Reviewed-By: Beth Griggs <Bethany.Griggs@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2020-01-03 19:31:52 -08:00
legendecas
bf7265ffc6
benchmark: add benchmark on async_hooks enabled http server
PR-URL: https://github.com/nodejs/node/pull/31100
Refs: https://github.com/nodejs/diagnostics/issues/124
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
2020-01-02 17:51:19 +01:00
dnlup
7365000e67 benchmark: use let instead of var in crypto
PR-URL: https://github.com/nodejs/node/pull/31135
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2020-01-01 09:21:12 -08:00
dnlup
3cec1a2969 benchmark: replace var with let/const in cluster benchmark
PR-URL: https://github.com/nodejs/node/pull/31042
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2019-12-27 06:26:27 -08:00
Robert Nagy
f68285b098
benchmark: include writev in benchmark
Currently we only consider write when benchmarking.

PR-URL: https://github.com/nodejs/node/pull/31066
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
2019-12-25 23:45:49 +01:00
dnlup
3885e157fa
benchmark: use let instead of var in child_process
PR-URL: https://github.com/nodejs/node/pull/31043
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
2019-12-25 11:42:58 +01:00
Diego Lafuente
fc553fd821 benchmark: add clear connections to secure-pair
adds clear connections to the secure-pair performance test to prove
that in some cases (when the sender send the data in small chunks)
clear connections perform worse than TLS connections

Also add a byte chunk size test to benchmark/net/net-pipe.js

Refs: https://github.com/nodejs/node/issues/27970

PR-URL: https://github.com/nodejs/node/pull/27971
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
2019-12-20 13:49:15 +05:30
Robert Nagy
ea86f8c902 benchmark: update manywrites back pressure
Make manywrites benchmark a bit more realistic by
taking back pressure into account. Otherwise
memory usage would no correspond well with
real world usage.

PR-URL: https://github.com/nodejs/node/pull/30977
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2019-12-17 17:36:31 -08:00
dnlup
bfce726be6
benchmark: use let/const instead of var in buffers
PR-URL: https://github.com/nodejs/node/pull/30945
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
2019-12-16 11:16:31 +01:00
Matheus Marchini
a4e7ea8a3a
benchmark: improve --filter pattern matching
* Let users provide more than one pattern by repeating the flag
  * Add new flag --exclude to exclude patterns
  * Add tests for --filter
  * Document --filter

This commit also fixes a bug where things like
`compare.js --new --old binary --new binary` was acceptable (now the
script will exit and print the usage message).

PR-URL: https://github.com/nodejs/node/pull/29987
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2019-12-10 11:34:46 -08:00
Ruben Bridgewater
c430aebe86
util: improve performance inspecting proxies
This makes sure we do not retrieve the handler in case it's not
required. This improves the performance a tiny bit for these cases.

PR-URL: https://github.com/nodejs/node/pull/30767
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2019-12-07 00:38:28 +01:00
Ruben Bridgewater
bdb1083ef5
benchmark: add more util inspect and format benchmarks
This adds a couple of benchmarks to check different options and code
paths.

PR-URL: https://github.com/nodejs/node/pull/30767
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2019-12-07 00:38:27 +01:00
Rich Trott
651c430826 doc,benchmark: move benchmark guide to benchmark directory
The doc/guides directory looks like a place for guides to using Node.js
but it's actually where we store development/internal documentation.
Move the benchmark guide to the benchmark directory where someone (who
doesn't know that bit of somewhat-surprising information) is more likely
to find it.

PR-URL: https://github.com/nodejs/node/pull/30781
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
2019-12-05 14:07:55 -08:00
Anna Henningsen
2205f85b2c
stream: improve performance for sync write finishes
Improve performance and reduce memory usage when a writable stream
is written to with the same callback (which is the most common case)
and when the write operation finishes synchronously (which is also
often the case).

                                                         confidence improvement accuracy (*)    (**)   (***)
    streams/writable-manywrites.js sync='no' n=2000000                  0.99 %       ±3.20%  ±4.28%  ±5.61%
    streams/writable-manywrites.js sync='yes' n=2000000        ***    710.69 %      ±19.65% ±26.47% ±35.09%

Refs: https://github.com/nodejs/node/issues/18013
Refs: https://github.com/nodejs/node/issues/18367

PR-URL: https://github.com/nodejs/node/pull/30710
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
2019-12-01 02:14:00 +01:00
Rich Trott
359766b2c3 benchmark,doc,lib,test: prepare for padding lint rule
Upcoming lint rule will require a blank line between consecutive
functions. Add it in the places where we don't have it already.

PR-URL: https://github.com/nodejs/node/pull/30696
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
2019-11-30 06:28:29 -08:00
dnlup
20b7f4a5e9
benchmark: use let instead of var in async_hooks
PR-URL: https://github.com/nodejs/node/pull/30470
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
2019-11-18 15:45:19 +01:00
dnlup
d1ce04c592 benchmark: use let instead of var in assert
PR-URL: https://github.com/nodejs/node/pull/30450
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
2019-11-17 18:31:54 +05:30
Anna Henningsen
973f324463
child_process,cluster: allow using V8 serialization API
Add an `serialization` option that allows child process IPC to
use the (typically more powerful) V8 serialization API.

Fixes: https://github.com/nodejs/node/issues/10965

PR-URL: https://github.com/nodejs/node/pull/30162
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
2019-11-05 23:07:04 +01:00
Anna Henningsen
d7452b7140
module: warn on using unfinished circular dependency
Warn when a non-existent property of an unfinished module.exports
object is being accessed, as that very often indicates the presence
of a hard-to-detect and hard-to-debug problem.

This mechanism is only used if `module.exports` is still a
regular object at the point at which the second, circular `require()`
happens.

The downside is that, temporarily, `module.exports` will have a
prototype other than `Object.prototype`, and that there may
be valid uses of accessing non-existent properties of unfinished
`module.exports` objects.

Performance of circular require calls in general is not
noticeably impacted.

                                               confidence improvement accuracy (*)   (**)  (***)
     module/module-loader-circular.js n=10000                 3.96 %       ±5.12% ±6.82% ±8.89%

Example:

    $ cat a.js
    'use strict';
    const b = require('./b.js');

    exports.fn = () => {};
    $ cat b.js
    'use strict';
    const a = require('./a.js');

    a.fn();
    $ node a.js
    (node:1617) Warning: Accessing non-existent property 'fn' of module exports inside circular dependency
    /tmp/b.js:4
    a.fn();
      ^

    TypeError: a.fn is not a function
        at Object.<anonymous> (/tmp/b.js:4:3)
        [...]

PR-URL: https://github.com/nodejs/node/pull/29935
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
2019-11-01 19:58:41 +01:00
Anna Henningsen
b35181f877
fs: add bufferSize option to fs.opendir()
Add an option that controls the size of the internal
buffer.

Fixes: https://github.com/nodejs/node/issues/29941

PR-URL: https://github.com/nodejs/node/pull/30114
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
2019-10-28 14:34:25 +01:00
Richard Lau
c8df5cf74a build: build benchmark addons like test addons
Build the addons for benchmarks in the same way that the addons for
tests are built.

PR-URL: https://github.com/nodejs/node/pull/29995
Fixes: https://github.com/nodejs/build/issues/1961
Refs: 53ca0b9ae1 (commitcomment-35494896)
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Beth Griggs <Bethany.Griggs@uk.ibm.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
2019-10-17 01:28:51 -04:00
Rich Trott
ed5eaa0495 doc: prepare miscellaneous docs for new markdown lint rules
Prepare the final few documents that haven't been updated to always use
`[]` with reference links and to escape `[` and `]` for things that
aren't links in markdown files.

PR-URL: https://github.com/nodejs/node/pull/29963
Reviewed-By: Masashi Hirano <shisama07@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
2019-10-15 06:39:52 -07:00
Gabriel Schulhof
53ca0b9ae1 src: render N-API weak callbacks as cleanup hooks
Since worker threads are complete Node.js environments, including the
ability to load native addons, and since those native addons can
allocate resources to be freed when objects go out of scope, and since,
upon worker thread exit, the engine does not invoke the weak callbacks
responsible for freeing resources which still have references, this
modification introduces tracking for weak references such that a list
of outstanding weak references is maintained. This list is traversed
during environment teardown. The callbacks for the remaining weak
references are called.

This change is also relevant for Node.js embedder scenarios, because in
those cases the process also outlives the `node::Environment` and
therefore weak callbacks should also be rendered as environment cleanup
hooks to ensure proper cleanup after native addons. This changes
introduces the means by which this can be accomplished.

A benchmark is included which measures the time it takes to execute the
weak reference callback for a given number of weak references.

Re: https://github.com/tc39/proposal-weakrefs/issues/125#issuecomment-535832130
PR-URL: https://github.com/nodejs/node/pull/28428
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
2019-10-13 00:07:43 -07:00
Anna Henningsen
5c93aab278
fs: buffer dir entries in opendir()
Read up to 32 directory entries in one batch when `dir.readSync()`
or `dir.read()` are called.

This increases performance significantly, although it introduces
quite a bit of edge case complexity.

                                                                 confidence improvement accuracy (*)    (**)    (***)
     fs/bench-opendir.js mode='async' dir='lib' n=100                  ***    155.93 %      ±30.05% ±40.34%  ±53.21%
     fs/bench-opendir.js mode='async' dir='test/parallel' n=100        ***    479.65 %      ±56.81% ±76.47% ±101.32%
     fs/bench-opendir.js mode='sync' dir='lib' n=100                           10.38 %      ±14.39% ±19.16%  ±24.96%
     fs/bench-opendir.js mode='sync' dir='test/parallel' n=100         ***     63.13 %      ±12.84% ±17.18%  ±22.58%

PR-URL: https://github.com/nodejs/node/pull/29893
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
2019-10-11 23:09:39 +02:00
Nick Schonning
e6c389cb3c benchmark: remove double word "then" in comments
PR-URL: https://github.com/nodejs/node/pull/29823
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
2019-10-10 21:37:16 -07:00
Joyee Cheung
1294c7e485
benchmark: add benchmark for vm.createContext
PR-URL: https://github.com/nodejs/node/pull/29845
Refs: https://github.com/nodejs/node/issues/29842
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
2019-10-11 05:28:04 +08:00
Anna Henningsen
afdc3d0d18 dgram: use uv_udp_try_send()
This improves dgram performance by avoiding unnecessary async
operations.

One issue with this commit is that it seems hard to actually create
conditions under which the fallback path to the async case is
actually taken, for all supported OS, so an internal CLI option
is used for testing that path.

Another caveat is that the lack of an async operation means
that there are slight timing differences (essentially `nextTick()`
rather than `setImmediate()` for the send callback).

PR-URL: https://github.com/nodejs/node/pull/29832
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
2019-10-05 17:48:10 -07:00
Anna Henningsen
82ebcb37d6
benchmark: improve process.env benchmarks
Benchmark different types of operations and make results comparable
by normalizing process.env for enumeartion.

PR-URL: https://github.com/nodejs/node/pull/29188
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
2019-09-18 23:24:42 +02:00
Anna Henningsen
ab841d5fba lib: add ASCII fast path to getStringWidth()
A lot of strings that are going to be passed to `getStringWidth()`
are ASCII strings, for which the calculation is rather easy and
calling into C++ can be skipped.

                                                       confidence improvement accuracy (*)    (**)   (***)
     misc/getstringwidth.js n=100000 type='ascii'            ***    328.99 %      ±21.73% ±29.25% ±38.77%
     misc/getstringwidth.js n=100000 type='emojiseq'                  2.94 %       ±7.66% ±10.19% ±13.26%
     misc/getstringwidth.js n=100000 type='fullwidth'                 4.70 %       ±5.64%  ±7.50%  ±9.76%

PR-URL: https://github.com/nodejs/node/pull/29301
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Minwoo Jung <minwoo@nodesource.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2019-09-02 21:02:34 -07:00
Nick Schonning
9a46cfc337 doc: remove multiple consecutive blank lines
These are rendered as single breaks.
Addresses Markdownlint MD012 rule.

PR-URL: https://github.com/nodejs/node/pull/29352
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
2019-08-31 15:27:58 -07:00
Brian White
34961c7b5f
process: improve nextTick performance
PR-URL: https://github.com/nodejs/node/pull/25461
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
2019-08-27 22:14:15 -04:00
Brian White
5ba3a2c4b6 events: improve once() performance
PR-URL: https://github.com/nodejs/node/pull/29307
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
2019-08-27 20:06:09 +08:00
Brian White
8292b280ec
net: allow reading data into a static buffer
Co-Authored-By: Anna Henningsen <anna@addaleax.net>

PR-URL: https://github.com/nodejs/node/pull/25436
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
2019-08-23 17:05:52 -04:00
Brian White
f0c8898fb5 buffer: improve equals() performance
PR-URL: https://github.com/nodejs/node/pull/29199
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2019-08-21 21:42:21 -07:00
Brian White
6d351d4cc0 buffer: improve copy() performance
PR-URL: https://github.com/nodejs/node/pull/29066
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2019-08-14 15:59:32 -07:00