+import { strictEqual } from 'node:assert'
+
+import Benchmark from 'benchmark'
+import { bench, group } from 'mitata'
+
+import {
+ DynamicClusterPool,
+ DynamicThreadPool,
+ FixedClusterPool,
+ FixedThreadPool,
+ Measurements,
+ PoolTypes,
+ WorkerChoiceStrategies,
+ WorkerTypes
+} from '../lib/index.mjs'
+
+const buildPoolifierPool = (workerType, poolType, poolSize, poolOptions) => {
+ switch (poolType) {
+ case PoolTypes.fixed:
+ switch (workerType) {
+ case WorkerTypes.thread:
+ return new FixedThreadPool(
+ poolSize,
+ './benchmarks/internal/thread-worker.mjs',
+ poolOptions
+ )
+ case WorkerTypes.cluster:
+ return new FixedClusterPool(
+ poolSize,
+ './benchmarks/internal/cluster-worker.cjs',
+ poolOptions
+ )
+ }
+ break
+ case PoolTypes.dynamic:
+ switch (workerType) {
+ case WorkerTypes.thread:
+ return new DynamicThreadPool(
+ Math.floor(poolSize / 2),
+ poolSize,
+ './benchmarks/internal/thread-worker.mjs',
+ poolOptions
+ )
+ case WorkerTypes.cluster:
+ return new DynamicClusterPool(
+ Math.floor(poolSize / 2),
+ poolSize,
+ './benchmarks/internal/cluster-worker.cjs',
+ poolOptions
+ )
+ }
+ break
+ }
+}
+
+const runPoolifierPool = async (pool, { taskExecutions, workerData }) => {
+ return await new Promise((resolve, reject) => {
+ let executions = 0
+ for (let i = 1; i <= taskExecutions; i++) {
+ pool
+ .execute(workerData)
+ .then(() => {
+ ++executions
+ if (executions === taskExecutions) {
+ resolve({ ok: 1 })
+ }
+ return undefined
+ })
+ .catch(err => {
+ console.error(err)
+ reject(err)
+ })
+ }
+ })
+}
+
+export const runPoolifierBenchmarkBenchmarkJs = async (
+ name,
+ workerType,
+ poolType,
+ poolSize,
+ { taskExecutions, workerData }
+) => {
+ return await new Promise((resolve, reject) => {
+ const pool = buildPoolifierPool(workerType, poolType, poolSize)
+ try {
+ const suite = new Benchmark.Suite(name)
+ for (const workerChoiceStrategy of Object.values(
+ WorkerChoiceStrategies
+ )) {
+ for (const enableTasksQueue of [false, true]) {
+ if (workerChoiceStrategy === WorkerChoiceStrategies.FAIR_SHARE) {
+ for (const measurement of [
+ Measurements.runTime,
+ Measurements.elu
+ ]) {
+ suite.add(
+ `${name} with ${workerChoiceStrategy}, with ${measurement} and ${
+ enableTasksQueue ? 'with' : 'without'
+ } tasks queue`,
+ async () => {
+ pool.setWorkerChoiceStrategy(workerChoiceStrategy, {
+ measurement
+ })
+ pool.enableTasksQueue(enableTasksQueue)
+ strictEqual(
+ pool.opts.workerChoiceStrategy,
+ workerChoiceStrategy
+ )
+ strictEqual(pool.opts.enableTasksQueue, enableTasksQueue)
+ strictEqual(
+ pool.opts.workerChoiceStrategyOptions.measurement,
+ measurement
+ )
+ await runPoolifierPool(pool, {
+ taskExecutions,
+ workerData
+ })
+ }
+ )
+ }
+ } else {
+ suite.add(
+ `${name} with ${workerChoiceStrategy} and ${
+ enableTasksQueue ? 'with' : 'without'
+ } tasks queue`,
+ async () => {
+ pool.setWorkerChoiceStrategy(workerChoiceStrategy)
+ pool.enableTasksQueue(enableTasksQueue)
+ strictEqual(
+ pool.opts.workerChoiceStrategy,
+ workerChoiceStrategy
+ )
+ strictEqual(pool.opts.enableTasksQueue, enableTasksQueue)
+ await runPoolifierPool(pool, {
+ taskExecutions,
+ workerData
+ })
+ }
+ )
+ }
+ }
+ }
+ suite
+ .on('cycle', event => {
+ console.info(event.target.toString())
+ })
+ .on('complete', function () {
+ console.info(
+ 'Fastest is ' +
+ LIST_FORMATTER.format(this.filter('fastest').map('name'))
+ )
+ const destroyTimeout = setTimeout(() => {
+ console.error('Pool destroy timeout reached (30s)')
+ resolve()
+ }, 30000)
+ pool
+ .destroy()
+ .then(resolve)
+ .catch(reject)
+ .finally(() => {
+ clearTimeout(destroyTimeout)
+ })
+ .catch(() => {})
+ })
+ .run({ async: true })
+ } catch (error) {
+ pool
+ .destroy()
+ .then(() => {
+ return reject(error)
+ })
+ .catch(() => {})
+ }
+ })
+}
+
+export const buildPoolifierBenchmarkMitata = (
+ name,
+ workerType,
+ poolType,
+ poolSize,
+ { taskExecutions, workerData }
+) => {
+ try {
+ const pool = buildPoolifierPool(workerType, poolType, poolSize)
+ for (const workerChoiceStrategy of Object.values(WorkerChoiceStrategies)) {
+ for (const enableTasksQueue of [false, true]) {
+ if (workerChoiceStrategy === WorkerChoiceStrategies.FAIR_SHARE) {
+ for (const measurement of [Measurements.runTime, Measurements.elu]) {
+ group(name, () => {
+ bench(
+ `${name} with ${workerChoiceStrategy}, with ${measurement} and ${
+ enableTasksQueue ? 'with' : 'without'
+ } tasks queue`,
+ async () => {
+ pool.setWorkerChoiceStrategy(workerChoiceStrategy, {
+ measurement
+ })
+ pool.enableTasksQueue(enableTasksQueue)
+ strictEqual(
+ pool.opts.workerChoiceStrategy,
+ workerChoiceStrategy
+ )
+ strictEqual(pool.opts.enableTasksQueue, enableTasksQueue)
+ strictEqual(
+ pool.opts.workerChoiceStrategyOptions.measurement,
+ measurement
+ )
+ await runPoolifierPool(pool, {
+ taskExecutions,
+ workerData
+ })
+ }
+ )
+ })
+ }
+ } else {
+ group(name, () => {
+ bench(
+ `${name} with ${workerChoiceStrategy} and ${
+ enableTasksQueue ? 'with' : 'without'
+ } tasks queue`,
+ async () => {
+ pool.setWorkerChoiceStrategy(workerChoiceStrategy)
+ pool.enableTasksQueue(enableTasksQueue)
+ strictEqual(
+ pool.opts.workerChoiceStrategy,
+ workerChoiceStrategy
+ )
+ strictEqual(pool.opts.enableTasksQueue, enableTasksQueue)
+ await runPoolifierPool(pool, {
+ taskExecutions,
+ workerData
+ })
+ }
+ )
+ })
+ }
+ }
+ }
+ return pool
+ } catch (error) {
+ console.error(error)
+ }
+}
+
+const LIST_FORMATTER = new Intl.ListFormat('en-US', {
+ style: 'long',
+ type: 'conjunction'
+})