import * as os from 'node:os'
-import { getRandomValues } from 'node:crypto'
+import { getRandomValues, randomInt } from 'node:crypto'
import { Worker as ClusterWorker } from 'node:cluster'
import { Worker as ThreadWorker } from 'node:worker_threads'
import { cpus } from 'node:os'
import type {
- InternalWorkerChoiceStrategyOptions,
- MeasurementStatisticsRequirements
-} from './pools/selection-strategies/selection-strategies-types'
-import type { KillBehavior } from './worker/worker-options'
-import { type IWorker, type WorkerType, WorkerTypes } from './pools/worker'
+ MeasurementStatisticsRequirements,
+ WorkerChoiceStrategyOptions
+} from './pools/selection-strategies/selection-strategies-types.js'
+import type { KillBehavior } from './worker/worker-options.js'
+import { type IWorker, type WorkerType, WorkerTypes } from './pools/worker.js'
+import type { IPool } from './pools/pool.js'
/**
* Default task name.
/* Intentionally empty */
})
-/**
- * Gets default worker choice strategy options.
- *
- * @param retries - The number of worker choice retries.
- * @returns The default worker choice strategy options.
- */
-const getDefaultInternalWorkerChoiceStrategyOptions = (
- retries: number
-): InternalWorkerChoiceStrategyOptions => {
- return {
- retries,
- runTime: { median: false },
- waitTime: { median: false },
- elu: { median: false }
- }
-}
-
/**
* Default measurement statistics requirements.
*/
}
}
-const clone = <T extends object>(object: T): T => {
- return JSON.parse(JSON.stringify(object)) as T
+export const getWorkerChoiceStrategyRetries = <
+ Worker extends IWorker,
+ Data,
+ Response
+>(
+ pool: IPool<Worker, Data, Response>,
+ opts?: WorkerChoiceStrategyOptions
+ ): number => {
+ return (
+ pool.info.maxSize +
+ Object.keys(opts?.weights ?? getDefaultWeights(pool.info.maxSize)).length
+ )
}
-export const buildInternalWorkerChoiceStrategyOptions = (
- poolMaxSize: number,
- opts?: InternalWorkerChoiceStrategyOptions
-): InternalWorkerChoiceStrategyOptions => {
+const clone = <T>(object: T): T => {
+ return structuredClone<T>(object)
+}
+
+export const buildWorkerChoiceStrategyOptions = <
+ Worker extends IWorker,
+ Data,
+ Response
+>(
+ pool: IPool<Worker, Data, Response>,
+ opts?: WorkerChoiceStrategyOptions
+ ): WorkerChoiceStrategyOptions => {
opts = clone(opts ?? {})
- if (opts?.weights == null) {
- opts.weights = getDefaultWeights(poolMaxSize)
- }
+ opts.weights = opts?.weights ?? getDefaultWeights(pool.info.maxSize)
return {
- ...getDefaultInternalWorkerChoiceStrategyOptions(
- poolMaxSize + Object.keys(opts.weights).length
- ),
+ ...{
+ runTime: { median: false },
+ waitTime: { median: false },
+ elu: { median: false }
+ },
...opts
}
}
const getDefaultWeights = (
poolMaxSize: number,
- defaultWorkerWeight: number = getDefaultWorkerWeight()
+ defaultWorkerWeight?: number
): Record<number, number> => {
+ defaultWorkerWeight = defaultWorkerWeight ?? getDefaultWorkerWeight()
const weights: Record<number, number> = {}
for (let workerNodeKey = 0; workerNodeKey < poolMaxSize; workerNodeKey++) {
weights[workerNodeKey] = defaultWorkerWeight
}
const getDefaultWorkerWeight = (): number => {
+ const cpuSpeed = randomInt(500, 2500)
let cpusCycleTimeWeight = 0
for (const cpu of cpus()) {
+ if (cpu.speed == null || cpu.speed === 0) {
+ cpu.speed =
+ cpus().find(cpu => cpu.speed != null && cpu.speed !== 0)?.speed ??
+ cpuSpeed
+ }
// CPU estimated cycle time
const numberOfDigits = cpu.speed.toString().length - 1
const cpuCycleTime = 1 / (cpu.speed / Math.pow(10, numberOfDigits))