| 1 | const { |
| 2 | DynamicThreadPool, |
| 3 | PoolEvents, |
| 4 | availableParallelism |
| 5 | } = require('poolifier') |
| 6 | |
| 7 | const pool = new DynamicThreadPool( |
| 8 | Math.floor(availableParallelism() / 2), |
| 9 | availableParallelism(), |
| 10 | './yourWorker.js', |
| 11 | { |
| 12 | errorHandler: e => console.error(e), |
| 13 | onlineHandler: () => console.info('worker is online') |
| 14 | } |
| 15 | ) |
| 16 | let poolFull = 0 |
| 17 | let poolReady = 0 |
| 18 | let poolBusy = 0 |
| 19 | pool.emitter.on(PoolEvents.full, () => poolFull++) |
| 20 | pool.emitter.on(PoolEvents.ready, () => poolReady++) |
| 21 | pool.emitter.on(PoolEvents.busy, () => poolBusy++) |
| 22 | |
| 23 | let resolved = 0 |
| 24 | const start = performance.now() |
| 25 | const iterations = 1000 |
| 26 | for (let i = 1; i <= iterations; i++) { |
| 27 | pool |
| 28 | .execute({}) |
| 29 | .then(() => { |
| 30 | resolved++ |
| 31 | if (resolved === iterations) { |
| 32 | console.info('Time taken is ' + (performance.now() - start)) |
| 33 | console.info('The pool was full for ' + poolFull + ' times') |
| 34 | console.info('The pool was ready for ' + poolReady + ' times') |
| 35 | return console.info('The pool was busy for ' + poolBusy + ' times') |
| 36 | } |
| 37 | return null |
| 38 | }) |
| 39 | .catch(err => console.error(err)) |
| 40 | } |