X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fpools%2Fselection-strategies%2Fweighted-round-robin-worker-choice-strategy.ts;h=2805133092b651ec1efa9d71a5f2f209b0f260f8;hb=922a735041f409408620e171d7f91edad70a63cd;hp=4fcbeeda43d6021cc0d71dfb4daa66b8a046f0de;hpb=932fc8be063cc15b543ad14c2ab6df0fa4224fba;p=poolifier.git diff --git a/src/pools/selection-strategies/weighted-round-robin-worker-choice-strategy.ts b/src/pools/selection-strategies/weighted-round-robin-worker-choice-strategy.ts index 4fcbeeda..28051330 100644 --- a/src/pools/selection-strategies/weighted-round-robin-worker-choice-strategy.ts +++ b/src/pools/selection-strategies/weighted-round-robin-worker-choice-strategy.ts @@ -1,9 +1,13 @@ import type { IWorker } from '../worker' import type { IPool } from '../pool' -import { DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS } from '../../utils' +import { + DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS, + DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS +} from '../../utils' import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy' import type { IWorkerChoiceStrategy, + StrategyPolicy, TaskStatisticsRequirements, WorkerChoiceStrategyOptions } from './selection-strategies-types' @@ -13,8 +17,8 @@ import type { * Loosely modeled after the weighted round robin queueing algorithm: https://en.wikipedia.org/wiki/Weighted_round_robin. * * @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 WeightedRoundRobinWorkerChoiceStrategy< Worker extends IWorker, @@ -23,6 +27,11 @@ export class WeightedRoundRobinWorkerChoiceStrategy< > extends AbstractWorkerChoiceStrategy implements IWorkerChoiceStrategy { + /** @inheritDoc */ + public readonly strategyPolicy: StrategyPolicy = { + useDynamicWorker: true + } + /** @inheritDoc */ public readonly taskStatisticsRequirements: TaskStatisticsRequirements = { runTime: { @@ -30,18 +39,10 @@ export class WeightedRoundRobinWorkerChoiceStrategy< average: true, median: false }, - waitTime: { - aggregate: false, - average: false, - median: false - }, - elu: false + waitTime: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS, + elu: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS } - /** - * Worker node id where the current task will be submitted. - */ - private currentWorkerNodeId: number = 0 /** * Default worker weight. */ @@ -63,7 +64,7 @@ export class WeightedRoundRobinWorkerChoiceStrategy< /** @inheritDoc */ public reset (): boolean { - this.currentWorkerNodeId = 0 + this.nextWorkerNodeId = 0 this.workerVirtualTaskRunTime = 0 return true } @@ -75,7 +76,7 @@ export class WeightedRoundRobinWorkerChoiceStrategy< /** @inheritDoc */ public choose (): number { - const chosenWorkerNodeKey = this.currentWorkerNodeId + const chosenWorkerNodeKey = this.nextWorkerNodeId const workerVirtualTaskRunTime = this.workerVirtualTaskRunTime const workerWeight = this.opts.weights?.[chosenWorkerNodeKey] ?? this.defaultWorkerWeight @@ -84,10 +85,10 @@ export class WeightedRoundRobinWorkerChoiceStrategy< workerVirtualTaskRunTime + this.getWorkerTaskRunTime(chosenWorkerNodeKey) } else { - this.currentWorkerNodeId = - this.currentWorkerNodeId === this.pool.workerNodes.length - 1 + this.nextWorkerNodeId = + this.nextWorkerNodeId === this.pool.workerNodes.length - 1 ? 0 - : this.currentWorkerNodeId + 1 + : this.nextWorkerNodeId + 1 this.workerVirtualTaskRunTime = 0 } return chosenWorkerNodeKey @@ -95,11 +96,11 @@ export class WeightedRoundRobinWorkerChoiceStrategy< /** @inheritDoc */ public remove (workerNodeKey: number): boolean { - if (this.currentWorkerNodeId === workerNodeKey) { + if (this.nextWorkerNodeId === workerNodeKey) { if (this.pool.workerNodes.length === 0) { - this.currentWorkerNodeId = 0 - } else if (this.currentWorkerNodeId > this.pool.workerNodes.length - 1) { - this.currentWorkerNodeId = this.pool.workerNodes.length - 1 + this.nextWorkerNodeId = 0 + } else if (this.nextWorkerNodeId > this.pool.workerNodes.length - 1) { + this.nextWorkerNodeId = this.pool.workerNodes.length - 1 } this.workerVirtualTaskRunTime = 0 }