X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fpools%2Fselection-strategies%2Fleast-used-worker-choice-strategy.ts;h=6318affe0a306492fe7d1257d6a99e05e3938a67;hb=26ce26ca8861318068427cc86697103e7a3ddbf4;hp=c750c290d1d7f3c5039698a9be04a2971b623781;hpb=edf8ce4e11eb0105038fcc236a2049c16b6175d2;p=poolifier.git

diff --git a/src/pools/selection-strategies/least-used-worker-choice-strategy.ts b/src/pools/selection-strategies/least-used-worker-choice-strategy.ts
index c750c290..6318affe 100644
--- a/src/pools/selection-strategies/least-used-worker-choice-strategy.ts
+++ b/src/pools/selection-strategies/least-used-worker-choice-strategy.ts
@@ -1,10 +1,9 @@
-import { DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS } from '../../utils'
 import type { IPool } from '../pool'
 import type { IWorker } from '../worker'
 import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
 import type {
   IWorkerChoiceStrategy,
-  WorkerChoiceStrategyOptions
+  InternalWorkerChoiceStrategyOptions
 } from './selection-strategies-types'
 
 /**
@@ -24,10 +23,9 @@ export class LeastUsedWorkerChoiceStrategy<
   /** @inheritDoc */
   public constructor (
     pool: IPool<Worker, Data, Response>,
-    opts: WorkerChoiceStrategyOptions = DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
+    opts: InternalWorkerChoiceStrategyOptions
   ) {
     super(pool, opts)
-    this.setTaskStatisticsRequirements(this.opts)
   }
 
   /** @inheritDoc */
@@ -42,6 +40,7 @@ export class LeastUsedWorkerChoiceStrategy<
 
   /** @inheritDoc */
   public choose (): number | undefined {
+    this.setPreviousWorkerNodeKey(this.nextWorkerNodeKey)
     this.nextWorkerNodeKey = this.leastUsedNextWorkerNodeKey()
     return this.nextWorkerNodeKey
   }
@@ -52,22 +51,19 @@ export class LeastUsedWorkerChoiceStrategy<
   }
 
   private leastUsedNextWorkerNodeKey (): number | undefined {
-    let minNumberOfTasks = Infinity
-    let chosenWorkerNodeKey: number | undefined
-    for (const [workerNodeKey, workerNode] of this.pool.workerNodes.entries()) {
-      const workerTaskStatistics = workerNode.usage.tasks
-      const workerTasks =
-        workerTaskStatistics.executed +
-        workerTaskStatistics.executing +
-        workerTaskStatistics.queued
-      if (workerTasks === 0) {
-        chosenWorkerNodeKey = workerNodeKey
-        break
-      } else if (workerTasks < minNumberOfTasks) {
-        minNumberOfTasks = workerTasks
-        chosenWorkerNodeKey = workerNodeKey
-      }
-    }
-    return chosenWorkerNodeKey
+    return this.pool.workerNodes.reduce(
+      (minWorkerNodeKey, workerNode, workerNodeKey, workerNodes) => {
+        return this.isWorkerNodeReady(workerNodeKey) &&
+          workerNode.usage.tasks.executed +
+            workerNode.usage.tasks.executing +
+            workerNode.usage.tasks.queued <
+            workerNodes[minWorkerNodeKey].usage.tasks.executed +
+              workerNodes[minWorkerNodeKey].usage.tasks.executing +
+              workerNodes[minWorkerNodeKey].usage.tasks.queued
+          ? workerNodeKey
+          : minWorkerNodeKey
+      },
+      0
+    )
   }
 }