diff --git a/benchmarks/Microsoft.AspNetCore.Mvc.Performance/MvcEndpointDatasourceBenchmark.cs b/benchmarks/Microsoft.AspNetCore.Mvc.Performance/MvcEndpointDatasourceBenchmark.cs
new file mode 100644
index 0000000000..982b8d4e22
--- /dev/null
+++ b/benchmarks/Microsoft.AspNetCore.Mvc.Performance/MvcEndpointDatasourceBenchmark.cs
@@ -0,0 +1,131 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using BenchmarkDotNet.Attributes;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc.Abstractions;
+using Microsoft.AspNetCore.Mvc.ActionConstraints;
+using Microsoft.AspNetCore.Mvc.Infrastructure;
+using Microsoft.AspNetCore.Mvc.Internal;
+using Microsoft.AspNetCore.Mvc.Routing;
+using Microsoft.AspNetCore.Routing;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Microsoft.AspNetCore.Mvc.Performance
+{
+    public class MvcEndpointDataSourceBenchmark
+    {
+        private const string DefaultRoute = "{Controller=Home}/{Action=Index}/{id?}";
+
+        private MockActionDescriptorCollectionProvider _conventionalActionProvider;
+        private MockActionDescriptorCollectionProvider _attributeActionProvider;
+        private List<MvcEndpointInfo> _conventionalEndpointInfos;
+
+        [Params(1, 100, 1000)]
+        public int ActionCount;
+
+        [GlobalSetup]
+        public void Setup()
+        {
+            _conventionalActionProvider = new MockActionDescriptorCollectionProvider(
+                Enumerable.Range(0, ActionCount).Select(i => CreateActionDescriptor(i, false)).ToList()
+                );
+
+            _attributeActionProvider = new MockActionDescriptorCollectionProvider(
+                Enumerable.Range(0, ActionCount).Select(i => CreateActionDescriptor(i, true)).ToList()
+                );
+
+            _conventionalEndpointInfos = new List<MvcEndpointInfo>
+            {
+                new MvcEndpointInfo(
+                    "Default",
+                    DefaultRoute,
+                    new RouteValueDictionary(),
+                    new Dictionary<string, object>(),
+                    new RouteValueDictionary(),
+                    new MockInlineConstraintResolver())
+            };
+        }
+
+        [Benchmark]
+        public void AttributeRouteEndpoints()
+        {
+            var endpointDataSource = CreateMvcEndpointDataSource(_attributeActionProvider);
+            var endpoints = endpointDataSource.Endpoints;
+        }
+
+        [Benchmark]
+        public void ConventionalEndpoints()
+        {
+            var endpointDataSource = CreateMvcEndpointDataSource(_conventionalActionProvider);
+            endpointDataSource.ConventionalEndpointInfos.AddRange(_conventionalEndpointInfos);
+            var endpoints = endpointDataSource.Endpoints;
+        }
+
+        private ActionDescriptor CreateActionDescriptor(int id, bool attributeRoute)
+        {
+            var actionDescriptor = new ActionDescriptor
+            {
+                RouteValues = new Dictionary<string, string>
+                {
+                    ["Controller"] = "Controller" + id,
+                    ["Action"] = "Index"
+                },
+                DisplayName = "Action " + id
+            };
+
+            if (attributeRoute)
+            {
+                actionDescriptor.AttributeRouteInfo = new AttributeRouteInfo
+                {
+                    Template = DefaultRoute
+                };
+            }
+
+            return actionDescriptor;
+        }
+
+        private MvcEndpointDataSource CreateMvcEndpointDataSource(
+            IActionDescriptorCollectionProvider actionDescriptorCollectionProvider)
+        {
+            var dataSource = new MvcEndpointDataSource(
+                actionDescriptorCollectionProvider,
+                new MvcEndpointInvokerFactory(new ActionInvokerFactory(Array.Empty<IActionInvokerProvider>())),
+                Array.Empty<IActionDescriptorChangeProvider>(),
+                new MockServiceProvider());
+
+            return dataSource;
+        }
+
+        private class MockActionDescriptorCollectionProvider : IActionDescriptorCollectionProvider
+        {
+            public MockActionDescriptorCollectionProvider(List<ActionDescriptor> actionDescriptors)
+            {
+                ActionDescriptors = new ActionDescriptorCollection(actionDescriptors, 0);
+            }
+
+            public ActionDescriptorCollection ActionDescriptors { get; }
+        }
+
+        private class MockServiceProvider : IServiceProvider
+        {
+            public object GetService(Type serviceType)
+            {
+                throw new NotImplementedException();
+            }
+        }
+
+        private class MockInlineConstraintResolver : IInlineConstraintResolver
+        {
+            public IRouteConstraint ResolveConstraint(string inlineConstraint)
+            {
+                throw new NotImplementedException();
+            }
+        }
+    }
+}
diff --git a/src/Microsoft.AspNetCore.Mvc.Core/Properties/AssemblyInfo.cs b/src/Microsoft.AspNetCore.Mvc.Core/Properties/AssemblyInfo.cs
index 31781090a1..14bede0243 100644
--- a/src/Microsoft.AspNetCore.Mvc.Core/Properties/AssemblyInfo.cs
+++ b/src/Microsoft.AspNetCore.Mvc.Core/Properties/AssemblyInfo.cs
@@ -36,4 +36,6 @@ using Microsoft.AspNetCore.Mvc.Formatters;
 [assembly: InternalsVisibleTo("Microsoft.AspNetCore.Mvc.ViewFeatures.Test, PublicKey=0024000004800000940000000602000000240000525341310004000001000100f33a29044fa9d740c9b3213a93e57c84b472c84e0b8a0e1ae48e67a9f8f6de9d5f7f3d52ac23e48ac51801f1dc950abe901da34d2a9e3baadb141a17c77ef3c565dd5ee5054b91cf63bb3c6ab83f72ab3aafe93d0fc3c2348b764fafb0b1c0733de51459aeab46580384bf9d74c4e28164b7cde247f891ba07891c9d872ad2bb")]
 [assembly: InternalsVisibleTo("Microsoft.AspNetCore.Mvc.Views.TestCommon, PublicKey=0024000004800000940000000602000000240000525341310004000001000100f33a29044fa9d740c9b3213a93e57c84b472c84e0b8a0e1ae48e67a9f8f6de9d5f7f3d52ac23e48ac51801f1dc950abe901da34d2a9e3baadb141a17c77ef3c565dd5ee5054b91cf63bb3c6ab83f72ab3aafe93d0fc3c2348b764fafb0b1c0733de51459aeab46580384bf9d74c4e28164b7cde247f891ba07891c9d872ad2bb")]
 
+[assembly: InternalsVisibleTo("Microsoft.AspNetCore.Mvc.Performance, PublicKey=0024000004800000940000000602000000240000525341310004000001000100f33a29044fa9d740c9b3213a93e57c84b472c84e0b8a0e1ae48e67a9f8f6de9d5f7f3d52ac23e48ac51801f1dc950abe901da34d2a9e3baadb141a17c77ef3c565dd5ee5054b91cf63bb3c6ab83f72ab3aafe93d0fc3c2348b764fafb0b1c0733de51459aeab46580384bf9d74c4e28164b7cde247f891ba07891c9d872ad2bb")]
+
 [assembly: InternalsVisibleTo("DynamicProxyGenAssembly2, PublicKey=0024000004800000940000000602000000240000525341310004000001000100c547cac37abd99c8db225ef2f6c8a3602f3b3606cc9891605d02baa56104f4cfc0734aa39b93bf7852f7d9266654753cc297e7d2edfe0bac1cdcf9f717241550e0a7b191195b7667bb4f64bcb8e2121380fd1d9d46ad2d92d2d15605093924cceaf74c4861eff62abf69b9291ed0a340e113be11e6a7d3113e92484cf7045cc7")]