From 7bded4748630da6fac781ba9c079ccdca7d4ffd5 Mon Sep 17 00:00:00 2001
From: Adam Ratzman <adam@adamratzman.com>
Date: Tue, 20 May 2025 17:16:56 -0400
Subject: [PATCH] Add a counter to Stress app

---
 .../Stress.TelemetryService/CounterMetrics.cs | 26 +++++++++++++++++++
 .../Stress/Stress.TelemetryService/Program.cs |  2 ++
 2 files changed, 28 insertions(+)
 create mode 100644 playground/Stress/Stress.TelemetryService/CounterMetrics.cs

diff --git a/playground/Stress/Stress.TelemetryService/CounterMetrics.cs b/playground/Stress/Stress.TelemetryService/CounterMetrics.cs
new file mode 100644
index 00000000000..0229b68c0fb
--- /dev/null
+++ b/playground/Stress/Stress.TelemetryService/CounterMetrics.cs
@@ -0,0 +1,26 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System.Diagnostics.Metrics;
+
+namespace Stress.TelemetryService;
+
+public class CounterMetrics(ILogger<CounterMetrics> logger, IMeterFactory meterFactory) : BackgroundService
+{
+    protected override async Task ExecuteAsync(CancellationToken cancellationToken)
+    {
+        logger.LogInformation("Starting CounterMetrics");
+
+        var meter = meterFactory.Create("CounterMetrics");
+        var counter = meter.CreateCounter<int>(
+            name: "run.done.new.count",
+            description: "Count of new done run",
+            unit: "count");
+
+        for (var i = 0; i < 1000000; i++)
+        {
+            counter.Add(1);
+            await Task.Delay(20, cancellationToken);
+        }
+    }
+}
diff --git a/playground/Stress/Stress.TelemetryService/Program.cs b/playground/Stress/Stress.TelemetryService/Program.cs
index 048e652ac57..cc27fdf3130 100644
--- a/playground/Stress/Stress.TelemetryService/Program.cs
+++ b/playground/Stress/Stress.TelemetryService/Program.cs
@@ -6,6 +6,7 @@
 var builder = Host.CreateApplicationBuilder(args);
 builder.Services.AddHostedService<TelemetryStresser>();
 builder.Services.AddHostedService<GaugeMetrics>();
+builder.Services.AddHostedService<CounterMetrics>();
 
 builder.AddServiceDefaults();
 builder.Logging.SetMinimumLevel(LogLevel.Trace);
@@ -14,6 +15,7 @@
     .WithMetrics(metrics =>
     {
         metrics.AddMeter("GaugeMetrics");
+        metrics.AddMeter("CounterMetrics");
     });
 
 var app = builder.Build();