X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fpools%2Fselection-strategies%2Fabstract-worker-choice-strategy.ts;h=9b14f3c58430dd143d8f84cf79b7ee635428eafc;hb=8d20e449d72975f6add9177d1097d5a204d14f71;hp=efa9578d8b2f889630aadec6da595ded93cd087f;hpb=802983837716dc38305c13f905a1977688365293;p=poolifier.git

diff --git a/src/pools/selection-strategies/abstract-worker-choice-strategy.ts b/src/pools/selection-strategies/abstract-worker-choice-strategy.ts
index efa9578d..9b14f3c5 100644
--- a/src/pools/selection-strategies/abstract-worker-choice-strategy.ts
+++ b/src/pools/selection-strategies/abstract-worker-choice-strategy.ts
@@ -1,3 +1,4 @@
+import { cpus } from 'node:os'
 import { DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS } from '../../utils'
 import type { IPool } from '../pool'
 import type { IWorker } from '../worker'
@@ -30,7 +31,8 @@ export abstract class AbstractWorkerChoiceStrategy<
     medRunTime: false,
     waitTime: false,
     avgWaitTime: false,
-    medWaitTime: false
+    medWaitTime: false,
+    elu: false
   }
 
   /**
@@ -112,6 +114,31 @@ export abstract class AbstractWorkerChoiceStrategy<
       : this.pool.workerNodes[workerNodeKey].tasksUsage.avgRunTime
   }
 
+  /**
+   * Gets the worker task wait time.
+   * If the required statistics are `avgWaitTime`, the average wait time is returned.
+   * If the required statistics are `medWaitTime`, the median wait time is returned.
+   *
+   * @param workerNodeKey - The worker node key.
+   * @returns The worker task wait time.
+   */
+  protected getWorkerWaitTime (workerNodeKey: number): number {
+    return this.requiredStatistics.medWaitTime
+      ? this.pool.workerNodes[workerNodeKey].tasksUsage.medWaitTime
+      : this.pool.workerNodes[workerNodeKey].tasksUsage.avgWaitTime
+  }
+
+  protected computeDefaultWorkerWeight (): number {
+    let cpusCycleTimeWeight = 0
+    for (const cpu of cpus()) {
+      // CPU estimated cycle time
+      const numberOfDigits = cpu.speed.toString().length - 1
+      const cpuCycleTime = 1 / (cpu.speed / Math.pow(10, numberOfDigits))
+      cpusCycleTimeWeight += cpuCycleTime * Math.pow(10, numberOfDigits)
+    }
+    return Math.round(cpusCycleTimeWeight / cpus().length)
+  }
+
   /**
    * Finds the first free worker node key based on the number of tasks the worker has applied.
    *