Commit 04166fe
benchmark: split Buffer.byteLength benchmark
PR-URL: #46616
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Robert Nagy <ronagy@icloud.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: James M Snell <jasnell@gmail.com>1 parent f558797 commit 04166fe
3 files changed
Lines changed: 62 additions & 49 deletions
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- benchmark/buffers
| Original file line number | Diff line number | Diff line change | |
|---|---|---|---|
@@ -0,0 +1,22 @@ | |||
| 1 | + 'use strict'; | ||
| 2 | + const common = require('../common'); | ||
| 3 | + | ||
| 4 | + const bench = common.createBenchmark(main, { | ||
| 5 | + len: [2, 16, 256], // x16 | ||
| 6 | + n: [4e6], | ||
| 7 | + }); | ||
| 8 | + | ||
| 9 | + function main({ n, len }) { | ||
| 10 | + const data = Buffer.alloc(len * 16, 'a'); | ||
| 11 | + const expected = Buffer.byteLength(data, 'buffer'); | ||
| 12 | + let changed = false; | ||
| 13 | + bench.start(); | ||
| 14 | + for (let i = 0; i < n; i++) { | ||
| 15 | + const actual = Buffer.byteLength(data, 'buffer'); | ||
| 16 | + if (expected !== actual) { changed = true; } | ||
| 17 | + } | ||
| 18 | + bench.end(n); | ||
| 19 | + if (changed) { | ||
| 20 | + throw new Error('Result changed during iteration'); | ||
| 21 | + } | ||
| 22 | + } | ||
| Original file line number | Diff line number | Diff line change | |
|---|---|---|---|
@@ -0,0 +1,40 @@ | |||
| 1 | + 'use strict'; | ||
| 2 | + const common = require('../common'); | ||
| 3 | + | ||
| 4 | + const bench = common.createBenchmark(main, { | ||
| 5 | + type: ['one_byte', 'two_bytes', 'three_bytes', 'four_bytes'], | ||
| 6 | + encoding: ['utf8', 'base64'], | ||
| 7 | + repeat: [1, 2, 16, 256], // x16 | ||
| 8 | + n: [4e6], | ||
| 9 | + }); | ||
| 10 | + | ||
| 11 | + // 16 chars each | ||
| 12 | + const chars = { | ||
| 13 | + one_byte: 'hello brendan!!!', | ||
| 14 | + two_bytes: 'ΰαβγδεζηθικλμνξο', | ||
| 15 | + three_bytes: '挰挱挲挳挴挵挶挷挸挹挺挻挼挽挾挿', | ||
| 16 | + four_bytes: '𠜎𠜱𠝹𠱓𠱸𠲖𠳏𠳕𠴕𠵼𠵿𠸎𠸏𠹷𠺝𠺢', | ||
| 17 | + }; | ||
| 18 | + | ||
| 19 | + function getInput(type, repeat, encoding) { | ||
| 20 | + const original = (repeat === 1) ? chars[type] : chars[type].repeat(repeat); | ||
| 21 | + if (encoding === 'base64') { | ||
| 22 | + Buffer.from(original, 'utf8').toString('base64'); | ||
| 23 | + } | ||
| 24 | + return original; | ||
| 25 | + } | ||
| 26 | + | ||
| 27 | + function main({ n, repeat, encoding, type }) { | ||
| 28 | + const data = getInput(type, repeat, encoding); | ||
| 29 | + const expected = Buffer.byteLength(data, encoding); | ||
| 30 | + let changed = false; | ||
| 31 | + bench.start(); | ||
| 32 | + for (let i = 0; i < n; i++) { | ||
| 33 | + const actual = Buffer.byteLength(data, encoding); | ||
| 34 | + if (expected !== actual) { changed = true; } | ||
| 35 | + } | ||
| 36 | + bench.end(n); | ||
| 37 | + if (changed) { | ||
| 38 | + throw new Error('Result changed during iteration'); | ||
| 39 | + } | ||
| 40 | + } | ||
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