-import { DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS } from '../../utils'
+import {
+ DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
+ DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
+} from '../../utils'
import type { IPool } from '../pool'
import type { IWorker } from '../worker'
import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
* Selects the worker with the least ELU.
*
* @typeParam Worker - Type of worker which manages the strategy.
- * @typeParam Data - Type of data sent to the worker. This can only be serializable data.
- * @typeParam Response - Type of execution response. This can only be serializable data.
+ * @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.
*/
export class LeastEluWorkerChoiceStrategy<
Worker extends IWorker,
implements IWorkerChoiceStrategy {
/** @inheritDoc */
public readonly taskStatisticsRequirements: TaskStatisticsRequirements = {
- runTime: {
- aggregate: false,
- average: false,
- median: false
- },
- waitTime: {
- aggregate: false,
- average: false,
- median: false
- },
+ runTime: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
+ waitTime: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
elu: {
aggregate: true,
average: false,
/** @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 {
- return this.nextWorkerNodeId
+ return this.leastEluNextWorkerNodeKey()
}
/** @inheritDoc */
public remove (): boolean {
return true
}
+
+ private leastEluNextWorkerNodeKey (): number {
+ let minWorkerElu = Infinity
+ for (const [workerNodeKey, workerNode] of this.pool.workerNodes.entries()) {
+ const workerUsage = workerNode.usage
+ const workerElu = workerUsage.elu?.active?.aggregate ?? 0
+ if (this.isWorkerNodeReady(workerNodeKey) && workerElu === 0) {
+ this.nextWorkerNodeKey = workerNodeKey
+ break
+ } else if (
+ this.isWorkerNodeReady(workerNodeKey) &&
+ workerElu < minWorkerElu
+ ) {
+ minWorkerElu = workerElu
+ this.nextWorkerNodeKey = workerNodeKey
+ }
+ }
+ return this.nextWorkerNodeKey
+ }
}