Merge pull request #3863 from jtattermusch/csharp_prevent_timeout

Restrict number of iterations for UnaryCallPerformance test
diff --git a/src/csharp/Grpc.Core.Tests/ClientServerTest.cs b/src/csharp/Grpc.Core.Tests/ClientServerTest.cs
index 68279a2..e58528f 100644
--- a/src/csharp/Grpc.Core.Tests/ClientServerTest.cs
+++ b/src/csharp/Grpc.Core.Tests/ClientServerTest.cs
@@ -210,7 +210,7 @@
             });
 
             var callDetails = helper.CreateUnaryCall();
-            BenchmarkUtil.RunBenchmark(100, 100,
+            BenchmarkUtil.RunBenchmark(1, 10,
                                        () => { Calls.BlockingUnaryCall(callDetails, "ABC"); });
         }