Add resource utilization warnings

src/Agent.Sdk/Knob/AgentKnobs.cs

@@ -500,6 +500,13 @@ public class AgentKnobs
             new EnvironmentKnobSource("AGENT_ENABLE_FETCHING_NET6_LIST"),
             new BuiltInDefaultKnobSource("false"));
 
+        public static readonly Knob EnableResourceUtilizationWarnings = new Knob(
+            nameof(EnableResourceUtilizationWarnings),
+            "If true, the agent will throw the resource utilization warnings",
+            new RuntimeKnobSource("AZP_ENABLE_RESOURCE_UTILIZATION_WARNINGS"),
+            new EnvironmentKnobSource("AZP_ENABLE_RESOURCE_UTILIZATION_WARNINGS"),
+            new BuiltInDefaultKnobSource("false"));
+
         public static readonly Knob ForceCreateTasksDirectory = new Knob(
             nameof(ForceCreateTasksDirectory),
             "Forces the agent to create _tasks folder for tasks.",

src/Agent.Worker/JobRunner.cs

@@ -111,15 +111,14 @@ public async Task<TaskResult> RunAsync(Pipelines.AgentJobRequestMessage message,
                 jobContext.Start();
                 jobContext.Section(StringUtil.Loc("StepStarting", message.JobDisplayName));
 
-
                 //Start Resource Diagnostics if enabled in the job message 
                 jobContext.Variables.TryGetValue("system.debug", out var systemDebug);
                 resourceDiagnosticManager = HostContext.GetService<IResourceMetricsManager>();
 
                 if (string.Equals(systemDebug, "true", StringComparison.OrdinalIgnoreCase))
                 {
                     resourceDiagnosticManager.Setup(jobContext);
-                    _ = resourceDiagnosticManager.Run();
+                    _ = resourceDiagnosticManager.RunDebugResourceMonitor();
                 }
 
                 agentShutdownRegistration = HostContext.AgentShutdownToken.Register(() =>