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662a730a JB |
1 | const Benchmark = require('benny') |
2 | const { sleep } = require('./benchmark-utils') | |
ed2968f2 JB |
3 | |
4 | const timeout = 2000 | |
a8bf8b7d | 5 | const interval = 1000 |
ed2968f2 | 6 | |
a6c34381 JB |
7 | /** |
8 | * @param timeoutMs | |
9 | */ | |
10 | function dummyTimeoutBusyWait (timeoutMs) { | |
11 | const timeoutTimestampMs = Date.now() + timeoutMs | |
7fd91296 | 12 | // eslint-disable-next-line no-empty |
a6c34381 JB |
13 | do {} while (Date.now() < timeoutTimestampMs) |
14 | } | |
15 | ||
e9bfc28e JB |
16 | /** |
17 | * @param timeoutMs | |
18 | */ | |
a8bf8b7d | 19 | async function sleepTimeoutBusyWait (timeoutMs) { |
a9c78d5d | 20 | const timeoutTimestampMs = Date.now() + timeoutMs |
a8bf8b7d JB |
21 | do { |
22 | await sleep(interval) | |
23 | } while (Date.now() < timeoutTimestampMs) | |
a9c78d5d JB |
24 | } |
25 | ||
26 | /** | |
27 | * @param timeoutMs | |
e47f67db | 28 | * @param intervalMs |
a9c78d5d | 29 | */ |
a8bf8b7d JB |
30 | async function divideAndConquerTimeoutBusyWait ( |
31 | timeoutMs, | |
32 | intervalMs = interval | |
33 | ) { | |
e47f67db | 34 | const tries = Math.round(timeoutMs / intervalMs) |
a9c78d5d JB |
35 | let count = 0 |
36 | do { | |
37 | count++ | |
e47f67db | 38 | await sleep(intervalMs) |
a9c78d5d | 39 | } while (count <= tries) |
ed2968f2 JB |
40 | } |
41 | ||
e9bfc28e JB |
42 | /** |
43 | * @param timeoutMs | |
e47f67db | 44 | * @param intervalMs |
e9bfc28e | 45 | */ |
a8bf8b7d | 46 | function setIntervalTimeoutBusyWait (timeoutMs, intervalMs = interval) { |
e47f67db | 47 | const tries = Math.round(timeoutMs / intervalMs) |
ed2968f2 JB |
48 | let count = 0 |
49 | const triesSetInterval = setInterval(() => { | |
50 | count++ | |
51 | if (count === tries) { | |
52 | clearInterval(triesSetInterval) | |
53 | } | |
e47f67db | 54 | }, intervalMs) |
ed2968f2 JB |
55 | } |
56 | ||
662a730a JB |
57 | Benchmark.suite( |
58 | 'Busy wait', | |
59 | Benchmark.add('dummyTimeoutBusyWait', () => { | |
a6c34381 | 60 | dummyTimeoutBusyWait(timeout) |
662a730a JB |
61 | }), |
62 | Benchmark.add('sleepTimeoutBusyWait', async () => { | |
ed40d2b0 | 63 | await sleepTimeoutBusyWait(timeout) |
662a730a JB |
64 | }), |
65 | Benchmark.add('divideAndConquerTimeoutBusyWait', async () => { | |
a9c78d5d | 66 | await divideAndConquerTimeoutBusyWait(timeout) |
662a730a JB |
67 | }), |
68 | Benchmark.add('setIntervalTimeoutBusyWait', () => { | |
ed2968f2 | 69 | setIntervalTimeoutBusyWait(timeout) |
662a730a JB |
70 | }), |
71 | Benchmark.cycle(), | |
72 | Benchmark.complete(), | |
73 | Benchmark.save({ file: 'busy-wait', format: 'json', details: true }), | |
74 | Benchmark.save({ file: 'busy-wait', format: 'chart.html', details: true }), | |
75 | Benchmark.save({ file: 'busy-wait', format: 'table.html', details: true }) | |
76 | ) |