perf: use optimized circular buffer implementation to store measurements history

[poolifier.git] / src / pools / worker.ts

diff --git a/src/pools/worker.ts b/src/pools/worker.ts
index 35d9f755bc3f9d4d321c8ac7b999261a3e1d613a..7d9f3de9b24e2a8cebeed50064ff2e8ab87e71b8 100644 (file)
--- a/src/pools/worker.ts
+++ b/src/pools/worker.ts
@@ -1,7 +1,7 @@
 import type { EventEmitter } from 'node:events'
 import type { MessageChannel, WorkerOptions } from 'node:worker_threads'
 
-import type { CircularArray } from '../circular-array.js'
+import type { CircularBuffer } from '../circular-buffer.js'
 import type { Task, TaskFunctionProperties } from '../utility-types.js'
 
 /**
@@ -52,6 +52,11 @@ export type EventHandler<Worker extends IWorker> =
   | ErrorHandler<Worker>
   | ExitHandler<Worker>
 
+/**
+ * Measurement history size.
+ */
+export const MeasurementHistorySize = 386
+
 /**
  * Measurement statistics.
  *
@@ -81,7 +86,7 @@ export interface MeasurementStatistics {
   /**
    * Measurement history.
    */
-  readonly history: CircularArray<number>
+  readonly history: CircularBuffer<number>
 }
 
 /**
@@ -172,6 +177,11 @@ export interface WorkerInfo {
    * This flag is set to `true` when worker node is stealing tasks from another worker node.
    */
   stealing: boolean
+  /**
+   * Back pressure flag.
+   * This flag is set to `true` when worker node tasks queue has back pressure.
+   */
+  backPressure: boolean
   /**
    * Task functions properties.
    */
@@ -325,6 +335,12 @@ export interface IWorkerNode<Worker extends IWorker, Data = unknown>
    * @returns The dequeued task.
    */
   readonly dequeueTask: (bucket?: number) => Task<Data> | undefined
+  /**
+   * Dequeue last prioritized task.
+   *
+   * @returns The dequeued task.
+   */
+  readonly dequeueLastPrioritizedTask: () => Task<Data> | undefined
   /**
    * Clears tasks queue.
    */