Merge pull request #300807 from HyphonGuo/main

Update batch-automatic-scaling.md

Author: prmerger-automator[bot]

articles/batch/batch-automatic-scaling.md

@@ -2,7 +2,7 @@
 title: Autoscale compute nodes in an Azure Batch pool
 description: Enable automatic scaling on an Azure Batch cloud pool to dynamically adjust the number of compute nodes in the pool.
 ms.topic: how-to
-ms.date: 04/02/2025
+ms.date: 06/05/2025
 ms.custom: H1Hack27Feb2017, fasttrack-edit, devx-track-csharp
 ---
 
@@ -46,15 +46,15 @@ The following examples show two autoscale formulas, which can be adjusted to wor
 
 #### Pending tasks
 
-With this autoscale formula, the pool is initially created with a single VM. The `$PendingTasks` metric defines the number of tasks that are running or queued. The formula finds the average number of pending tasks in the last 180 seconds and sets the `$TargetDedicatedNodes` variable accordingly. The formula ensures that the target number of dedicated nodes never exceeds 25 VMs. As new tasks are submitted, the pool automatically grows. As tasks complete, VMs become free and the autoscaling formula shrinks the pool.
+With this autoscale formula, the pool is initially created with a single VM. The `$PendingTasks` metric defines the number of tasks that are running or queued. The formula finds the average number of pending tasks in the last 15 minutes and sets the `$TargetDedicatedNodes` variable accordingly. The formula ensures that the target number of dedicated nodes never exceeds 25 VMs. As new tasks are submitted, the pool automatically grows. As tasks complete, VMs become free and the autoscaling formula shrinks the pool.
 
 This formula scales dedicated nodes, but can be modified to apply to scale Spot nodes as well.
 
 ```
 startingNumberOfVMs = 1;
 maxNumberofVMs = 25;
-pendingTaskSamplePercent = $PendingTasks.GetSamplePercent(180 * TimeInterval_Second);
-pendingTaskSamples = pendingTaskSamplePercent < 70 ? startingNumberOfVMs : avg($PendingTasks.GetSample(180 * TimeInterval_Second));
+pendingTaskSamplePercent = $PendingTasks.GetSamplePercent(TimeInterval_Minute * 15);
+pendingTaskSamples = pendingTaskSamplePercent < 70 ? startingNumberOfVMs : avg($PendingTasks.GetSample(TimeInterval_Minute * 15));
 $TargetDedicatedNodes=min(maxNumberofVMs, pendingTaskSamples);
 $NodeDeallocationOption = taskcompletion;
 ```