import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
import type {
IWorkerChoiceStrategy,
- TaskStatistics,
+ TaskStatisticsRequirements,
WorkerChoiceStrategyOptions
} from './selection-strategies-types'
extends AbstractWorkerChoiceStrategy<Worker, Data, Response>
implements IWorkerChoiceStrategy {
/** @inheritDoc */
- public readonly taskStatistics: TaskStatistics = {
- runTime: false,
- avgRunTime: true,
- medRunTime: false,
- waitTime: false,
- avgWaitTime: false,
- medWaitTime: false,
- elu: true
+ public readonly taskStatisticsRequirements: TaskStatisticsRequirements = {
+ runTime: {
+ aggregate: false,
+ average: false,
+ median: false
+ },
+ waitTime: {
+ aggregate: false,
+ average: false,
+ median: false
+ },
+ elu: {
+ aggregate: true,
+ average: false,
+ median: false
+ }
}
/** @inheritDoc */
opts: WorkerChoiceStrategyOptions = DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
) {
super(pool, opts)
- this.setTaskStatistics(this.opts)
+ this.setTaskStatisticsRequirements(this.opts)
}
/** @inheritDoc */
/** @inheritDoc */
public update (): boolean {
+ let minWorkerElu = Infinity
+ for (const [workerNodeKey, workerNode] of this.pool.workerNodes.entries()) {
+ const workerUsage = workerNode.workerUsage
+ const workerElu = workerUsage.elu?.active.aggregate ?? 0
+ if (workerElu === 0) {
+ this.nextWorkerNodeId = workerNodeKey
+ break
+ } else if (workerElu < minWorkerElu) {
+ minWorkerElu = workerElu
+ this.nextWorkerNodeId = workerNodeKey
+ }
+ }
return true
}
/** @inheritDoc */
public choose (): number {
- let minTasksElu = Infinity
- let leastEluWorkerNodeKey!: number
- for (const [workerNodeKey, workerNode] of this.pool.workerNodes.entries()) {
- const tasksUsage = workerNode.tasksUsage
- const tasksElu = tasksUsage.elu?.utilization ?? 0
- if (tasksElu === 0) {
- return workerNodeKey
- } else if (tasksElu < minTasksElu) {
- minTasksElu = tasksElu
- leastEluWorkerNodeKey = workerNodeKey
- }
- }
- return leastEluWorkerNodeKey
+ return this.nextWorkerNodeId
}
/** @inheritDoc */