-import { cpus } from 'node:os'
-import {
- DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
- DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
-} from '../../utils'
-import type { IPool } from '../pool'
-import type { IWorker } from '../worker'
+import type { IPool } from '../pool.js'
+import { DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS } from '../utils.js'
+import type { IWorker } from '../worker.js'
import type {
IWorkerChoiceStrategy,
- MeasurementStatisticsRequirements,
StrategyPolicy,
TaskStatisticsRequirements,
- WorkerChoiceStrategyOptions
-} from './selection-strategies-types'
+ WorkerChoiceStrategyOptions,
+} from './selection-strategies-types.js'
+import {
+ buildWorkerChoiceStrategyOptions,
+ toggleMedianMeasurementStatisticsRequirements,
+} from './selection-strategies-utils.js'
/**
* Worker choice strategy abstract base class.
- *
* @typeParam Worker - Type of worker which manages the strategy.
* @typeParam Data - Type of data sent to the worker. This can only be structured-cloneable data.
* @typeParam Response - Type of execution response. This can only be structured-cloneable data.
/**
* The previous worker node key.
*/
- protected previousWorkerNodeKey: number = 0
+ protected previousWorkerNodeKey = 0
/** @inheritDoc */
public readonly strategyPolicy: StrategyPolicy = {
dynamicWorkerUsage: false,
- dynamicWorkerReady: true
+ dynamicWorkerReady: true,
}
/** @inheritDoc */
public readonly taskStatisticsRequirements: TaskStatisticsRequirements = {
runTime: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
waitTime: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
- elu: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS
+ elu: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
}
/**
* Constructs a worker choice strategy bound to the pool.
- *
* @param pool - The pool instance.
* @param opts - The worker choice strategy options.
*/
public constructor (
protected readonly pool: IPool<Worker, Data, Response>,
- protected opts: WorkerChoiceStrategyOptions = DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
+ protected opts?: WorkerChoiceStrategyOptions
) {
- this.opts = { ...DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS, ...opts }
this.choose = this.choose.bind(this)
+ this.setOptions(this.opts)
}
protected setTaskStatisticsRequirements (
- opts: WorkerChoiceStrategyOptions
+ opts: WorkerChoiceStrategyOptions | undefined
): void {
- this.toggleMedianMeasurementStatisticsRequirements(
+ toggleMedianMeasurementStatisticsRequirements(
this.taskStatisticsRequirements.runTime,
- opts.runTime?.median as boolean
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ opts!.runTime!.median
)
- this.toggleMedianMeasurementStatisticsRequirements(
+ toggleMedianMeasurementStatisticsRequirements(
this.taskStatisticsRequirements.waitTime,
- opts.waitTime?.median as boolean
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ opts!.waitTime!.median
)
- this.toggleMedianMeasurementStatisticsRequirements(
+ toggleMedianMeasurementStatisticsRequirements(
this.taskStatisticsRequirements.elu,
- opts.elu?.median as boolean
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ opts!.elu!.median
)
}
- private toggleMedianMeasurementStatisticsRequirements (
- measurementStatisticsRequirements: MeasurementStatisticsRequirements,
- toggleMedian: boolean
- ): void {
- if (measurementStatisticsRequirements.average && toggleMedian) {
- measurementStatisticsRequirements.average = false
- measurementStatisticsRequirements.median = toggleMedian
- }
- if (measurementStatisticsRequirements.median && !toggleMedian) {
- measurementStatisticsRequirements.average = true
- measurementStatisticsRequirements.median = toggleMedian
- }
- }
-
protected resetWorkerNodeKeyProperties (): void {
this.nextWorkerNodeKey = 0
this.previousWorkerNodeKey = 0
public abstract remove (workerNodeKey: number): boolean
/** @inheritDoc */
- public setOptions (opts: WorkerChoiceStrategyOptions): void {
- this.opts = { ...DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS, ...opts }
+ public setOptions (opts: WorkerChoiceStrategyOptions | undefined): void {
+ this.opts = buildWorkerChoiceStrategyOptions<Worker, Data, Response>(
+ this.pool,
+ opts
+ )
this.setTaskStatisticsRequirements(this.opts)
}
/**
* Whether the worker node is ready or not.
- *
* @param workerNodeKey - The worker node key.
* @returns Whether the worker node is ready or not.
*/
- private isWorkerNodeReady (workerNodeKey: number): boolean {
- return this.pool.workerNodes[workerNodeKey].info.ready
- }
-
- /**
- * Whether the worker node has back pressure or not (i.e. its tasks queue is full).
- *
- * @param workerNodeKey - The worker node key.
- * @returns `true` if the worker node has back pressure, `false` otherwise.
- */
- private hasWorkerNodeBackPressure (workerNodeKey: number): boolean {
- return this.pool.hasWorkerNodeBackPressure(workerNodeKey)
+ protected isWorkerNodeReady (workerNodeKey: number): boolean {
+ return this.pool.workerNodes[workerNodeKey]?.info?.ready ?? false
}
/**
- * Whether the worker node is eligible or not.
- * A worker node is eligible if it is ready and does not have back pressure.
- *
- * @param workerNodeKey - The worker node key.
- * @returns `true` if the worker node is eligible, `false` otherwise.
- * @see {@link isWorkerNodeReady}
- * @see {@link hasWorkerNodeBackPressure}
+ * Check the next worker node key.
*/
- protected isWorkerNodeEligible (workerNodeKey: number): boolean {
- return (
- this.isWorkerNodeReady(workerNodeKey) &&
- !this.hasWorkerNodeBackPressure(workerNodeKey)
- )
+ protected checkNextWorkerNodeKey (): void {
+ if (
+ this.nextWorkerNodeKey != null &&
+ (this.nextWorkerNodeKey < 0 ||
+ !this.isWorkerNodeReady(this.nextWorkerNodeKey))
+ ) {
+ delete this.nextWorkerNodeKey
+ }
}
/**
* Gets the worker node task runtime.
* If the task statistics require the average runtime, the average runtime is returned.
- * If the task statistics require the median runtime , the median runtime is returned.
- *
+ * If the task statistics require the median runtime, the median runtime is returned.
* @param workerNodeKey - The worker node key.
* @returns The worker node task runtime.
*/
* Gets the worker node task wait time.
* If the task statistics require the average wait time, the average wait time is returned.
* If the task statistics require the median wait time, the median wait time is returned.
- *
* @param workerNodeKey - The worker node key.
* @returns The worker node task wait time.
*/
* Gets the worker node task ELU.
* If the task statistics require the average ELU, the average ELU is returned.
* If the task statistics require the median ELU, the median ELU is returned.
- *
* @param workerNodeKey - The worker node key.
* @returns The worker node task ELU.
*/
/**
* Sets safely the previous worker node key.
- *
* @param workerNodeKey - The worker node key.
*/
protected setPreviousWorkerNodeKey (workerNodeKey: number | undefined): void {
- this.previousWorkerNodeKey = workerNodeKey ?? this.previousWorkerNodeKey
- }
-
- /**
- * Check the next worker node eligibility.
- */
- protected checkNextWorkerNodeEligibility (): void {
- if (!this.isWorkerNodeEligible(this.nextWorkerNodeKey as number)) {
- this.nextWorkerNodeKey = undefined
- }
- }
-
- protected computeDefaultWorkerWeight (): number {
- let cpusCycleTimeWeight = 0
- for (const cpu of cpus()) {
- // CPU estimated cycle time
- const numberOfDigits = cpu.speed.toString().length - 1
- const cpuCycleTime = 1 / (cpu.speed / Math.pow(10, numberOfDigits))
- cpusCycleTimeWeight += cpuCycleTime * Math.pow(10, numberOfDigits)
- }
- return Math.round(cpusCycleTimeWeight / cpus().length)
+ this.previousWorkerNodeKey =
+ workerNodeKey != null && workerNodeKey >= 0
+ ? workerNodeKey
+ : this.previousWorkerNodeKey
}
}
repositories / poolifier.git / blobdiff