ae196175f4
v8 is faster at setting object properties in JS than C++. Even when it
requires calling into JS from native code. Make
process._getActiveRequests() faster by doing this when populating the
array containing request objects.
Simple benchmark:
for (let i = 0; i < 22; i++)
fs.open(__filename, 'r', function() { });
let t = process.hrtime();
for (let i = 0; i < 1e6; i++)
process._getActiveRequests();
t = process.hrtime(t);
console.log((t[0] * 1e9 + t[1]) / 1e6);
Results between the two:
Previous: 4406 ns/op
Patched: 690 ns/op 5.4x faster
PR-URL: https://github.com/nodejs/node/pull/3375
Reviewed-By: James Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <ben@strongloop.com>
10 lines
242 B
JavaScript
10 lines
242 B
JavaScript
'use strict';
|
|
|
|
const common = require('../common');
|
|
const assert = require('assert');
|
|
const fs = require('fs');
|
|
|
|
for (let i = 0; i < 12; i++)
|
|
fs.open(__filename, 'r', function() { });
|
|
|
|
assert.equal(12, process._getActiveRequests().length);
|