import { cpus } from 'node:os'
-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 type {
* 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 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 abstract class AbstractWorkerChoiceStrategy<
Worker extends IWorker,
Data = unknown,
Response = unknown
> implements IWorkerChoiceStrategy {
- /**
- * Toggles finding the last free worker node key.
- */
- private toggleFindLastFreeWorkerNodeKey: boolean = false
+ // /**
+ // * Toggles finding the last free worker node key.
+ // */
+ // private toggleFindLastFreeWorkerNodeKey: boolean = false
/**
* Id of the next worker node.
/** @inheritDoc */
public readonly taskStatisticsRequirements: TaskStatisticsRequirements = {
- runTime: {
- aggregate: false,
- average: false,
- median: false
- },
- waitTime: {
- aggregate: false,
- average: false,
- median: false
- },
- elu: {
- aggregate: false,
- average: false,
- median: false
- }
+ runTime: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
+ waitTime: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
+ elu: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS
}
/**
/** @inheritDoc */
public setOptions (opts: WorkerChoiceStrategyOptions): void {
- opts = opts ?? DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
- this.setTaskStatisticsRequirements(opts)
- this.opts = opts
+ this.opts = opts ?? DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
+ this.setTaskStatisticsRequirements(this.opts)
}
- /**
- * Finds a free worker node key.
- *
- * @returns The free worker node key or `-1` if there is no free worker node.
- */
- protected findFreeWorkerNodeKey (): number {
- if (this.toggleFindLastFreeWorkerNodeKey) {
- this.toggleFindLastFreeWorkerNodeKey = false
- return this.findLastFreeWorkerNodeKey()
- }
- this.toggleFindLastFreeWorkerNodeKey = true
- return this.findFirstFreeWorkerNodeKey()
- }
+ // /**
+ // * Finds a free worker node key.
+ // *
+ // * @returns The free worker node key or `-1` if there is no free worker node.
+ // */
+ // protected findFreeWorkerNodeKey (): number {
+ // if (this.toggleFindLastFreeWorkerNodeKey) {
+ // this.toggleFindLastFreeWorkerNodeKey = false
+ // return this.findLastFreeWorkerNodeKey()
+ // }
+ // this.toggleFindLastFreeWorkerNodeKey = true
+ // return this.findFirstFreeWorkerNodeKey()
+ // }
/**
* Gets the worker task runtime.
*/
protected getWorkerTaskRunTime (workerNodeKey: number): number {
return this.taskStatisticsRequirements.runTime.median
- ? this.pool.workerNodes[workerNodeKey].workerUsage.runTime.median
- : this.pool.workerNodes[workerNodeKey].workerUsage.runTime.average
+ ? this.pool.workerNodes[workerNodeKey].usage.runTime.median
+ : this.pool.workerNodes[workerNodeKey].usage.runTime.average
}
/**
*/
protected getWorkerTaskWaitTime (workerNodeKey: number): number {
return this.taskStatisticsRequirements.waitTime.median
- ? this.pool.workerNodes[workerNodeKey].workerUsage.runTime.median
- : this.pool.workerNodes[workerNodeKey].workerUsage.runTime.average
+ ? this.pool.workerNodes[workerNodeKey].usage.waitTime.median
+ : this.pool.workerNodes[workerNodeKey].usage.waitTime.average
}
/**
*/
protected getWorkerTaskElu (workerNodeKey: number): number {
return this.taskStatisticsRequirements.elu.median
- ? this.pool.workerNodes[workerNodeKey].workerUsage.elu.active.median
- : this.pool.workerNodes[workerNodeKey].workerUsage.elu.active.average
+ ? this.pool.workerNodes[workerNodeKey].usage.elu.active.median
+ : this.pool.workerNodes[workerNodeKey].usage.elu.active.average
}
protected computeDefaultWorkerWeight (): number {
return Math.round(cpusCycleTimeWeight / cpus().length)
}
- /**
- * Finds the first free worker node key based on the number of tasks the worker has applied.
- *
- * If a worker is found with `0` executing tasks, it is detected as free and its worker node key is returned.
- *
- * If no free worker is found, `-1` is returned.
- *
- * @returns A worker node key if there is one, `-1` otherwise.
- */
- private findFirstFreeWorkerNodeKey (): number {
- return this.pool.workerNodes.findIndex(workerNode => {
- return workerNode.workerUsage.tasks.executing === 0
- })
- }
-
- /**
- * Finds the last free worker node key based on the number of tasks the worker has applied.
- *
- * If a worker is found with `0` executing tasks, it is detected as free and its worker node key is returned.
- *
- * If no free worker is found, `-1` is returned.
- *
- * @returns A worker node key if there is one, `-1` otherwise.
- */
- private findLastFreeWorkerNodeKey (): number {
- // It requires node >= 18.0.0:
- // return this.workerNodes.findLastIndex(workerNode => {
- // return workerNode.workerUsage.tasks.executing === 0
- // })
- for (
- let workerNodeKey = this.pool.workerNodes.length - 1;
- workerNodeKey >= 0;
- workerNodeKey--
- ) {
- if (
- this.pool.workerNodes[workerNodeKey].workerUsage.tasks.executing === 0
- ) {
- return workerNodeKey
- }
- }
- return -1
- }
+ // /**
+ // * Finds the first free worker node key based on the number of tasks the worker has applied.
+ // *
+ // * If a worker is found with `0` executing tasks, it is detected as free and its worker node key is returned.
+ // *
+ // * If no free worker is found, `-1` is returned.
+ // *
+ // * @returns A worker node key if there is one, `-1` otherwise.
+ // */
+ // private findFirstFreeWorkerNodeKey (): number {
+ // return this.pool.workerNodes.findIndex(workerNode => {
+ // return workerNode.usage.tasks.executing === 0
+ // })
+ // }
+
+ // /**
+ // * Finds the last free worker node key based on the number of tasks the worker has applied.
+ // *
+ // * If a worker is found with `0` executing tasks, it is detected as free and its worker node key is returned.
+ // *
+ // * If no free worker is found, `-1` is returned.
+ // *
+ // * @returns A worker node key if there is one, `-1` otherwise.
+ // */
+ // private findLastFreeWorkerNodeKey (): number {
+ // // It requires node >= 18.0.0:
+ // // return this.workerNodes.findLastIndex(workerNode => {
+ // // return workerNode.usage.tasks.executing === 0
+ // // })
+ // for (
+ // let workerNodeKey = this.pool.workerNodes.length - 1;
+ // workerNodeKey >= 0;
+ // workerNodeKey--
+ // ) {
+ // if (this.pool.workerNodes[workerNodeKey].usage.tasks.executing === 0) {
+ // return workerNodeKey
+ // }
+ // }
+ // return -1
+ // }
}