X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fpools%2Fabstract-pool.ts;h=24e8a5b0c670f275a91a93dec22227fa12659d25;hb=5931725336d0de8a06146641ae6feef22bf60e6e;hp=6ebb30595d822c525ef98e226bf3239a1d4c475f;hpb=df593701c4bd494b0e99372fdcc3708412799942;p=poolifier.git diff --git a/src/pools/abstract-pool.ts b/src/pools/abstract-pool.ts index 6ebb3059..24e8a5b0 100644 --- a/src/pools/abstract-pool.ts +++ b/src/pools/abstract-pool.ts @@ -4,10 +4,12 @@ import type { MessageValue, PromiseResponseWrapper } from '../utility-types' import { DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS, EMPTY_FUNCTION, + isKillBehavior, isPlainObject, - median + median, + round } from '../utils' -import { KillBehaviors, isKillBehavior } from '../worker/worker-options' +import { KillBehaviors } from '../worker/worker-options' import { CircularArray } from '../circular-array' import { Queue } from '../queue' import { @@ -19,9 +21,16 @@ import { type PoolType, PoolTypes, type TasksQueueOptions, - type WorkerType + type WorkerType, + WorkerTypes } from './pool' -import type { IWorker, Task, WorkerNode, WorkerUsage } from './worker' +import type { + IWorker, + MessageHandler, + Task, + WorkerNode, + WorkerUsage +} from './worker' import { Measurements, WorkerChoiceStrategies, @@ -34,8 +43,8 @@ import { WorkerChoiceStrategyContext } from './selection-strategies/worker-choic * Base class that implements some shared logic for all poolifier pools. * * @typeParam Worker - Type of worker which manages this pool. - * @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 AbstractPool< Worker extends IWorker, @@ -70,6 +79,11 @@ export abstract class AbstractPool< Response > + /** + * The start timestamp of the pool. + */ + private readonly startTimestamp + /** * Constructs a new poolifier pool. * @@ -109,9 +123,11 @@ export abstract class AbstractPool< this.setupHook() - for (let i = 1; i <= this.numberOfWorkers; i++) { + while (this.workerNodes.length < this.numberOfWorkers) { this.createAndSetupWorker() } + + this.startTimestamp = performance.now() } private checkFilePath (filePath: string): void { @@ -237,49 +253,77 @@ export abstract class AbstractPool< worker: this.worker, minSize: this.minSize, maxSize: this.maxSize, + utilization: round(this.utilization), workerNodes: this.workerNodes.length, idleWorkerNodes: this.workerNodes.reduce( (accumulator, workerNode) => - workerNode.workerUsage.tasks.executing === 0 + workerNode.usage.tasks.executing === 0 ? accumulator + 1 : accumulator, 0 ), busyWorkerNodes: this.workerNodes.reduce( (accumulator, workerNode) => - workerNode.workerUsage.tasks.executing > 0 - ? accumulator + 1 - : accumulator, + workerNode.usage.tasks.executing > 0 ? accumulator + 1 : accumulator, 0 ), executedTasks: this.workerNodes.reduce( (accumulator, workerNode) => - accumulator + workerNode.workerUsage.tasks.executed, + accumulator + workerNode.usage.tasks.executed, 0 ), executingTasks: this.workerNodes.reduce( (accumulator, workerNode) => - accumulator + workerNode.workerUsage.tasks.executing, + accumulator + workerNode.usage.tasks.executing, 0 ), queuedTasks: this.workerNodes.reduce( (accumulator, workerNode) => - accumulator + workerNode.workerUsage.tasks.queued, + accumulator + workerNode.usage.tasks.queued, 0 ), maxQueuedTasks: this.workerNodes.reduce( (accumulator, workerNode) => - accumulator + workerNode.workerUsage.tasks.maxQueued, + accumulator + workerNode.usage.tasks.maxQueued, 0 ), failedTasks: this.workerNodes.reduce( (accumulator, workerNode) => - accumulator + workerNode.workerUsage.tasks.failed, + accumulator + workerNode.usage.tasks.failed, 0 ) } } + /** + * Gets the pool run time. + * + * @returns The pool run time in milliseconds. + */ + private get runTime (): number { + return performance.now() - this.startTimestamp + } + + /** + * Gets the approximate pool utilization. + * + * @returns The pool utilization. + */ + private get utilization (): number { + const poolRunTimeCapacity = this.runTime * this.maxSize + const totalTasksRunTime = this.workerNodes.reduce( + (accumulator, workerNode) => + accumulator + workerNode.usage.runTime.aggregate, + 0 + ) + const totalTasksWaitTime = this.workerNodes.reduce( + (accumulator, workerNode) => + accumulator + workerNode.usage.waitTime.aggregate, + 0 + ) + return (totalTasksRunTime + totalTasksWaitTime) / poolRunTimeCapacity + } + /** * Pool type. * @@ -302,11 +346,22 @@ export abstract class AbstractPool< */ protected abstract get maxSize (): number + /** + * Get the worker given its id. + * + * @param workerId - The worker id. + * @returns The worker if found in the pool worker nodes, `undefined` otherwise. + */ + private getWorkerById (workerId: number): Worker | undefined { + return this.workerNodes.find(workerNode => workerNode.info.id === workerId) + ?.worker + } + /** * Gets the given worker its worker node key. * * @param worker - The worker. - * @returns The worker node key if the worker is found in the pool worker nodes, `-1` otherwise. + * @returns The worker node key if found in the pool worker nodes, `-1` otherwise. */ private getWorkerNodeKey (worker: Worker): number { return this.workerNodes.findIndex( @@ -402,7 +457,7 @@ export abstract class AbstractPool< protected internalBusy (): boolean { return ( this.workerNodes.findIndex(workerNode => { - return workerNode.workerUsage.tasks.executing === 0 + return workerNode.usage.tasks.executing === 0 }) === -1 ) } @@ -428,7 +483,7 @@ export abstract class AbstractPool< if ( this.opts.enableTasksQueue === true && (this.busy || - this.workerNodes[workerNodeKey].workerUsage.tasks.executing >= + this.workerNodes[workerNodeKey].usage.tasks.executing >= ((this.opts.tasksQueueOptions as TasksQueueOptions) .concurrency as number)) ) { @@ -460,8 +515,8 @@ export abstract class AbstractPool< protected abstract destroyWorker (worker: Worker): void | Promise /** - * Setup hook to execute code before worker node are created in the abstract constructor. - * Can be overridden + * Setup hook to execute code before worker nodes are created in the abstract constructor. + * Can be overridden. * * @virtual */ @@ -485,7 +540,7 @@ export abstract class AbstractPool< workerNodeKey: number, task: Task ): void { - const workerUsage = this.workerNodes[workerNodeKey].workerUsage + const workerUsage = this.workerNodes[workerNodeKey].usage ++workerUsage.tasks.executing this.updateWaitTimeWorkerUsage(workerUsage, task) } @@ -501,8 +556,7 @@ export abstract class AbstractPool< worker: Worker, message: MessageValue ): void { - const workerUsage = - this.workerNodes[this.getWorkerNodeKey(worker)].workerUsage + const workerUsage = this.workerNodes[this.getWorkerNodeKey(worker)].usage this.updateTaskStatisticsWorkerUsage(workerUsage, message) this.updateRunTimeWorkerUsage(workerUsage, message) this.updateEluWorkerUsage(workerUsage, message) @@ -670,9 +724,12 @@ export abstract class AbstractPool< * @param worker - The worker which should register a listener. * @param listener - The message listener callback. */ - protected abstract registerWorkerMessageListener< - Message extends Data | Response - >(worker: Worker, listener: (message: MessageValue) => void): void + private registerWorkerMessageListener( + worker: Worker, + listener: (message: MessageValue) => void + ): void { + worker.on('message', listener as MessageHandler) + } /** * Creates a new worker. @@ -683,12 +740,14 @@ export abstract class AbstractPool< /** * Function that can be hooked up when a worker has been newly created and moved to the pool worker nodes. - * - * Can be used to update the `maxListeners` or binding the `main-worker`\<-\>`worker` connection if not bind by default. + * Can be overridden. * * @param worker - The newly created worker. */ - protected abstract afterWorkerSetup (worker: Worker): void + protected afterWorkerSetup (worker: Worker): void { + // Listen to worker messages. + this.registerWorkerMessageListener(worker, this.workerListener()) + } /** * Creates a new worker and sets it up completely in the pool worker nodes. @@ -736,11 +795,9 @@ export abstract class AbstractPool< isKillBehavior(KillBehaviors.HARD, message.kill) || (message.kill != null && ((this.opts.enableTasksQueue === false && - this.workerNodes[workerNodeKey].workerUsage.tasks.executing === - 0) || + this.workerNodes[workerNodeKey].usage.tasks.executing === 0) || (this.opts.enableTasksQueue === true && - this.workerNodes[workerNodeKey].workerUsage.tasks.executing === - 0 && + this.workerNodes[workerNodeKey].usage.tasks.executing === 0 && this.tasksQueueSize(workerNodeKey) === 0))) ) { // Kill message received from the worker: no new tasks are submitted to that worker for a while ( > maxInactiveTime) @@ -757,7 +814,18 @@ export abstract class AbstractPool< */ protected workerListener (): (message: MessageValue) => void { return message => { - if (message.id != null) { + if (message.workerId != null && message.started != null) { + // Worker started message received + const worker = this.getWorkerById(message.workerId) + if (worker != null) { + this.workerNodes[this.getWorkerNodeKey(worker)].info.started = + message.started + } else { + throw new Error( + `Worker started message received from unknown worker '${message.workerId}'` + ) + } + } else if (message.id != null) { // Task execution response received const promiseResponse = this.promiseResponseMap.get(message.id) if (promiseResponse != null) { @@ -808,7 +876,7 @@ export abstract class AbstractPool< workerNode: WorkerNode, workerUsage: WorkerUsage ): void { - workerNode.workerUsage = workerUsage + workerNode.usage = workerUsage } /** @@ -820,7 +888,8 @@ export abstract class AbstractPool< private pushWorkerNode (worker: Worker): number { this.workerNodes.push({ worker, - workerUsage: this.getWorkerUsage(), + info: { id: this.getWorkerId(worker), started: true }, + usage: this.getWorkerUsage(), tasksQueue: new Queue>() }) const workerNodeKey = this.getWorkerNodeKey(worker) @@ -831,23 +900,40 @@ export abstract class AbstractPool< return this.workerNodes.length } + /** + * Gets the worker id. + * + * @param worker - The worker. + * @returns The worker id. + */ + private getWorkerId (worker: Worker): number | undefined { + if (this.worker === WorkerTypes.thread) { + return worker.threadId + } else if (this.worker === WorkerTypes.cluster) { + return worker.id + } + } + // /** // * Sets the given worker in the pool worker nodes. // * // * @param workerNodeKey - The worker node key. // * @param worker - The worker. + // * @param workerInfo - The worker info. // * @param workerUsage - The worker usage. // * @param tasksQueue - The worker task queue. // */ // private setWorkerNode ( // workerNodeKey: number, // worker: Worker, + // workerInfo: WorkerInfo, // workerUsage: WorkerUsage, // tasksQueue: Queue> // ): void { // this.workerNodes[workerNodeKey] = { // worker, - // workerUsage, + // info: workerInfo, + // usage: workerUsage, // tasksQueue // } // }