X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fpools%2Fselection-strategies%2Fleast-elu-worker-choice-strategy.ts;h=2624e5b2fdc68444d1e085452fe117655b45f282;hb=516dcb0df1957823ec30f15db5f7585a7a302e8f;hp=5cc02bffbc58997dc872ad023f13f7308a903640;hpb=e460940e8d2a41a846b2334d54410807ffc2f421;p=poolifier.git

diff --git a/src/pools/selection-strategies/least-elu-worker-choice-strategy.ts b/src/pools/selection-strategies/least-elu-worker-choice-strategy.ts
index 5cc02bff..2624e5b2 100644
--- a/src/pools/selection-strategies/least-elu-worker-choice-strategy.ts
+++ b/src/pools/selection-strategies/least-elu-worker-choice-strategy.ts
@@ -1,4 +1,7 @@
-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 { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
@@ -12,8 +15,8 @@ import type {
  * Selects the worker with the least ELU.
  *
  * @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 LeastEluWorkerChoiceStrategy<
     Worker extends IWorker,
@@ -24,17 +27,13 @@ export class LeastEluWorkerChoiceStrategy<
   implements IWorkerChoiceStrategy {
   /** @inheritDoc */
   public readonly taskStatisticsRequirements: TaskStatisticsRequirements = {
-    runTime: {
-      aggregate: false,
+    runTime: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
+    waitTime: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
+    elu: {
+      aggregate: true,
       average: false,
       median: false
-    },
-    waitTime: {
-      aggregate: false,
-      average: false,
-      median: false
-    },
-    elu: true
+    }
   }
 
   /** @inheritDoc */
@@ -57,24 +56,31 @@ export class LeastEluWorkerChoiceStrategy<
   }
 
   /** @inheritDoc */
-  public choose (): number {
+  public choose (): number | undefined {
+    this.setPreviousWorkerNodeKey(this.nextWorkerNodeKey)
+    this.nextWorkerNodeKey = this.leastEluNextWorkerNodeKey()
+    return this.nextWorkerNodeKey
+  }
+
+  /** @inheritDoc */
+  public remove (): boolean {
+    return true
+  }
+
+  private leastEluNextWorkerNodeKey (): number | undefined {
+    let chosenWorkerNodeKey: number | undefined
     let minWorkerElu = Infinity
-    let leastEluWorkerNodeKey!: number
     for (const [workerNodeKey, workerNode] of this.pool.workerNodes.entries()) {
-      const workerUsage = workerNode.workerUsage
-      const workerElu = workerUsage.elu?.utilization ?? 0
+      const workerUsage = workerNode.usage
+      const workerElu = workerUsage.elu?.active?.aggregate ?? 0
       if (workerElu === 0) {
-        return workerNodeKey
+        chosenWorkerNodeKey = workerNodeKey
+        break
       } else if (workerElu < minWorkerElu) {
         minWorkerElu = workerElu
-        leastEluWorkerNodeKey = workerNodeKey
+        chosenWorkerNodeKey = workerNodeKey
       }
     }
-    return leastEluWorkerNodeKey
-  }
-
-  /** @inheritDoc */
-  public remove (): boolean {
-    return true
+    return chosenWorkerNodeKey
   }
 }