40 events were recorded, while maxOpPerSecond is 5

[MichalStrehovsky]

 Starting:    System.Diagnostics.DiagnosticSource.Tests (parallel test collections = on [2 threads], stop on fail = off)
Unhandled exception. Xunit.Sdk.TrueException: 40 events were recorded, while maxOpPerSecond is 5
   at Xunit.Assert.True(Nullable`1 condition, String userMessage) in /_/src/arcade/src/Microsoft.DotNet.XUnitAssert/src/BooleanAsserts.cs:line 135
   at System.Diagnostics.Tests.DiagnosticSourceEventSourceBridgeTests.<>c.<TestRateLimitingSampler>b__30_0(String maxOpPerSecond) in /_/src/libraries/System.Diagnostics.DiagnosticSource/tests/DiagnosticSourceEventSourceBridgeTests.cs:line 1477
   at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args) in /_/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs:line 39
   at System.Reflection.MethodBaseInvoker.InvokeDirectByRefWithFewArgs(Object obj, Span`1 copyOfArgs, BindingFlags invokeAttr) in /_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs:line 174
--- End of stack trace from previous location ---
   at Microsoft.DotNet.RemoteExecutor.Program.Main(String[] args) in /_/src/arcade/src/Microsoft.DotNet.RemoteExecutor/src/Program.cs:line 97
   at System.Environment.CallEntryPoint(IntPtr entryPoint, String[]* pArgument, Int32* pReturnValue, Boolean captureException, Exception* pException) in /_/src/coreclr/System.Private.CoreLib/src/System/Environment.CoreCLR.cs:line 155
    System.Diagnostics.Tests.DiagnosticSourceEventSourceBridgeTests.TestRateLimitingSampler(maxOperationPerSecond: 5) [FAIL]
      Microsoft.DotNet.RemoteExecutor.RemoteExecutionException : Remote process failed with an unhandled exception.
      Stack Trace:
        
        Child exception:
          Xunit.Sdk.TrueException: 40 events were recorded, while maxOpPerSecond is 5
        /_/src/libraries/System.Diagnostics.DiagnosticSource/tests/DiagnosticSourceEventSourceBridgeTests.cs(1477,0): at System.Diagnostics.Tests.DiagnosticSourceEventSourceBridgeTests.<>c.<TestRateLimitingSampler>b__30_0(String maxOpPerSecond)
        /_/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs(39,0): at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
        /_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs(174,0): at System.Reflection.MethodBaseInvoker.InvokeDirectByRefWithFewArgs(Object obj, Span`1 copyOfArgs, BindingFlags invokeAttr)
        
        Child process:
          System.Diagnostics.DiagnosticSource.Tests, Version=11.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51 System.Diagnostics.Tests.DiagnosticSourceEventSourceBridgeTests+<>c Void <TestRateLimitingSampler>b__30_0(System.String)
        
        Child arguments:
          5
        
Unhandled exception. Xunit.Sdk.TrueException: 400 events were recorded, while maxOpPerSecond is 50
   at Xunit.Assert.True(Nullable`1 condition, String userMessage) in /_/src/arcade/src/Microsoft.DotNet.XUnitAssert/src/BooleanAsserts.cs:line 135
   at System.Diagnostics.Tests.DiagnosticSourceEventSourceBridgeTests.<>c.<TestRateLimitingSampler>b__30_0(String maxOpPerSecond) in /_/src/libraries/System.Diagnostics.DiagnosticSource/tests/DiagnosticSourceEventSourceBridgeTests.cs:line 1477
   at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args) in /_/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs:line 39
   at System.Reflection.MethodBaseInvoker.InvokeDirectByRefWithFewArgs(Object obj, Span`1 copyOfArgs, BindingFlags invokeAttr) in /_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs:line 174
--- End of stack trace from previous location ---
   at Microsoft.DotNet.RemoteExecutor.Program.Main(String[] args) in /_/src/arcade/src/Microsoft.DotNet.RemoteExecutor/src/Program.cs:line 97
   at System.Environment.CallEntryPoint(IntPtr entryPoint, String[]* pArgument, Int32* pReturnValue, Boolean captureException, Exception* pException) in /_/src/coreclr/System.Private.CoreLib/src/System/Environment.CoreCLR.cs:line 155
    System.Diagnostics.Tests.DiagnosticSourceEventSourceBridgeTests.TestRateLimitingSampler(maxOperationPerSecond: 50) [FAIL]
      Microsoft.DotNet.RemoteExecutor.RemoteExecutionException : Remote process failed with an unhandled exception.
      Stack Trace:
        
        Child exception:
          Xunit.Sdk.TrueException: 400 events were recorded, while maxOpPerSecond is 50
        /_/src/libraries/System.Diagnostics.DiagnosticSource/tests/DiagnosticSourceEventSourceBridgeTests.cs(1477,0): at System.Diagnostics.Tests.DiagnosticSourceEventSourceBridgeTests.<>c.<TestRateLimitingSampler>b__30_0(String maxOpPerSecond)
        /_/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs(39,0): at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
        /_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs(174,0): at System.Reflection.MethodBaseInvoker.InvokeDirectByRefWithFewArgs(Object obj, Span`1 copyOfArgs, BindingFlags invokeAttr)
        
        Child process:
          System.Diagnostics.DiagnosticSource.Tests, Version=11.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51 System.Diagnostics.Tests.DiagnosticSourceEventSourceBridgeTests+<>c Void <TestRateLimitingSampler>b__30_0(System.String)
        
        Child arguments:
          50
        
  Finished:    System.Diagnostics.DiagnosticSource.Tests
=== TEST EXECUTION SUMMARY ===
   System.Diagnostics.DiagnosticSource.Tests  Total: 409, Errors: 0, Failed: 2, Skipped: 0, Time: 32.301s

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1389193
Build error leg or test failing: System.Diagnostics.Tests.DiagnosticSourceEventSourceBridgeTests.TestRateLimitingSampler
Pull request: #127221

Error Message

Fill the error message using step by step known issues guidance.

{
  "ErrorMessage": "events were recorded, while maxOpPerSecond",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1389193
Error message validated: [events were recorded, while maxOpPerSecond]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 4/22/2026 1:01:37 AM UTC

Report

Build	Definition	Test	Pull Request
1389193	dotnet/runtime	System.Diagnostics.Tests.DiagnosticSourceEventSourceBridgeTests.TestRateLimitingSampler	#127221

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	0	1

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[MihuBot]

I'm a bot. Here is a possible related and/or duplicate issue (I may be wrong):

• TestRateLimitingSampler failing #114946