refactor: factor out worker runtime getter
[poolifier.git] / src / pools / selection-strategies / weighted-round-robin-worker-choice-strategy.ts
index ad20db423826aa46a649da5512a3358e9f119572..a0553fcb81ace9c910b1ecd755b9c123b640f362 100644 (file)
@@ -50,7 +50,7 @@ export class WeightedRoundRobinWorkerChoiceStrategy<
     opts: WorkerChoiceStrategyOptions = DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
   ) {
     super(pool, opts)
-    this.checkOptions(this.opts)
+    this.setRequiredStatistics(this.opts)
     this.defaultWorkerWeight = this.computeDefaultWorkerWeight()
   }
 
@@ -61,16 +61,21 @@ export class WeightedRoundRobinWorkerChoiceStrategy<
     return true
   }
 
+  /** @inheritDoc */
+  public update (): boolean {
+    return true
+  }
+
   /** @inheritDoc */
   public choose (): number {
     const chosenWorkerNodeKey = this.currentWorkerNodeId
-    const workerVirtualTaskRunTime = this.workerVirtualTaskRunTime ?? 0
-    const workerTaskWeight =
+    const workerVirtualTaskRunTime = this.workerVirtualTaskRunTime
+    const workerWeight =
       this.opts.weights?.[chosenWorkerNodeKey] ?? this.defaultWorkerWeight
-    if (workerVirtualTaskRunTime < workerTaskWeight) {
+    if (workerVirtualTaskRunTime < workerWeight) {
       this.workerVirtualTaskRunTime =
         workerVirtualTaskRunTime +
-        (this.getWorkerVirtualTaskRunTime(chosenWorkerNodeKey) ?? 0)
+        this.getWorkerTaskRunTime(chosenWorkerNodeKey)
     } else {
       this.currentWorkerNodeId =
         this.currentWorkerNodeId === this.pool.workerNodes.length - 1
@@ -86,23 +91,14 @@ export class WeightedRoundRobinWorkerChoiceStrategy<
     if (this.currentWorkerNodeId === workerNodeKey) {
       if (this.pool.workerNodes.length === 0) {
         this.currentWorkerNodeId = 0
-      } else {
-        this.currentWorkerNodeId =
-          this.currentWorkerNodeId > this.pool.workerNodes.length - 1
-            ? this.pool.workerNodes.length - 1
-            : this.currentWorkerNodeId
+      } else if (this.currentWorkerNodeId > this.pool.workerNodes.length - 1) {
+        this.currentWorkerNodeId = this.pool.workerNodes.length - 1
       }
       this.workerVirtualTaskRunTime = 0
     }
     return true
   }
 
-  private getWorkerVirtualTaskRunTime (workerNodeKey: number): number {
-    return this.requiredStatistics.medRunTime
-      ? this.pool.workerNodes[workerNodeKey].tasksUsage.medRunTime
-      : this.pool.workerNodes[workerNodeKey].tasksUsage.avgRunTime
-  }
-
   private computeDefaultWorkerWeight (): number {
     let cpusCycleTimeWeight = 0
     for (const cpu of cpus()) {