diff --git a/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/Program.cs b/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/Program.cs
index db29b584db..688771f622 100644
--- a/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/Program.cs
+++ b/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/Program.cs
@@ -43,6 +43,4 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Performance
 
         All = uint.MaxValue
     }
-
-
 }
diff --git a/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/configs/CoreConfig.cs b/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/configs/CoreConfig.cs
index eff6663fec..72056a28b4 100644
--- a/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/configs/CoreConfig.cs
+++ b/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/configs/CoreConfig.cs
@@ -3,7 +3,6 @@
 
 using BenchmarkDotNet.Configs;
 using BenchmarkDotNet.Engines;
-using BenchmarkDotNet.Environments;
 using BenchmarkDotNet.Jobs;
 using BenchmarkDotNet.Validators;
 
@@ -17,10 +16,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Performance
             Add(new RpsColumn());
 
             Add(Job.Default.
-                With(Platform.X64).
-                With(Jit.RyuJit).
                 With(BenchmarkDotNet.Environments.Runtime.Core).
-                WithRemoveOutliers(true).
                 With(new GcMode() { Server = true }).
                 With(RunStrategy.Throughput).
                 WithLaunchCount(3).
diff --git a/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/configs/DefaultConfig.cs b/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/configs/DefaultConfig.cs
index 01f30373c4..6b2670302c 100644
--- a/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/configs/DefaultConfig.cs
+++ b/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/configs/DefaultConfig.cs
@@ -20,7 +20,6 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Performance
                 With(Platform.X64).
                 With(Jit.RyuJit).
                 With(BenchmarkDotNet.Environments.Runtime.Clr).
-                WithRemoveOutliers(true).
                 With(new GcMode() { Server = true }).
                 With(RunStrategy.Throughput).
                 WithLaunchCount(3).
@@ -28,10 +27,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Performance
                 WithTargetCount(10));
 
             Add(Job.Default.
-                With(Platform.X64).
-                With(Jit.RyuJit).
                 With(BenchmarkDotNet.Environments.Runtime.Core).
-                WithRemoveOutliers(true).
                 With(new GcMode() { Server = true }).
                 With(RunStrategy.Throughput).
                 WithLaunchCount(3).
diff --git a/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/helpers/MockKestrelTrace.cs b/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/helpers/MockKestrelTrace.cs
index 9e035010d3..5d5bf38201 100644
--- a/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/helpers/MockKestrelTrace.cs
+++ b/perf/Microsoft.AspNetCore.Server.Kestrel.Performance/helpers/MockKestrelTrace.cs
@@ -20,17 +20,14 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Performance
 
         public override void ConnectionRead(string connectionId, int count)
         {
-            //_logger.LogDebug(1, @"Connection id ""{ConnectionId}"" recv {count} bytes.", connectionId, count);
         }
 
         public override void ConnectionWrite(string connectionId, int count)
         {
-            //_logger.LogDebug(1, @"Connection id ""{ConnectionId}"" send {count} bytes.", connectionId, count);
         }
 
         public override void ConnectionWriteCallback(string connectionId, int status)
         {
-            //_logger.LogDebug(1, @"Connection id ""{ConnectionId}"" send finished with status {status}.", connectionId, status);
         }
     }
 }
\ No newline at end of file
diff --git a/src/Microsoft.AspNetCore.Server.Kestrel/Internal/Infrastructure/Constants.cs b/src/Microsoft.AspNetCore.Server.Kestrel/Internal/Infrastructure/Constants.cs
index 77968bca17..32267912e0 100644
--- a/src/Microsoft.AspNetCore.Server.Kestrel/Internal/Infrastructure/Constants.cs
+++ b/src/Microsoft.AspNetCore.Server.Kestrel/Internal/Infrastructure/Constants.cs
@@ -2,6 +2,7 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System.Runtime.InteropServices;
+using System.Text;
 
 namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Infrastructure
 {
@@ -13,6 +14,8 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Infrastructure
         public static readonly int? ECONNRESET = GetECONNRESET();
         public static readonly int? EADDRINUSE = GetEADDRINUSE();
 
+        public static readonly Encoding UTF8 = Encoding.UTF8;
+
         /// <summary>
         /// Prefix of host name used to specify Unix sockets in the configuration.
         /// </summary>
diff --git a/src/Microsoft.AspNetCore.Server.Kestrel/Internal/Infrastructure/MemoryPoolIterator.cs b/src/Microsoft.AspNetCore.Server.Kestrel/Internal/Infrastructure/MemoryPoolIterator.cs
index f562c9ae02..9f18b75465 100644
--- a/src/Microsoft.AspNetCore.Server.Kestrel/Internal/Infrastructure/MemoryPoolIterator.cs
+++ b/src/Microsoft.AspNetCore.Server.Kestrel/Internal/Infrastructure/MemoryPoolIterator.cs
@@ -21,7 +21,6 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Infrastructure
                                                         0x02ul << 40 |
                                                         0x01ul << 48 ) + 1;
 
-        private static readonly Encoding _utf8 = Encoding.UTF8;
         private static readonly int _vectorSpan = Vector<byte>.Count;
 
         private MemoryPoolBlock _block;
@@ -1124,10 +1123,10 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Infrastructure
             }
             if (end.Block == Block)
             {
-                return _utf8.GetString(Block.Array, Index, end.Index - Index);
+                return Constants.UTF8.GetString(Block.Array, Index, end.Index - Index);
             }
 
-            var decoder = _utf8.GetDecoder();
+            var decoder = Constants.UTF8.GetDecoder();
 
             var length = GetLength(end);
             var charLength = length;
diff --git a/src/Microsoft.AspNetCore.Server.Kestrel/Internal/Infrastructure/MemoryPoolIteratorExtensions.cs b/src/Microsoft.AspNetCore.Server.Kestrel/Internal/Infrastructure/MemoryPoolIteratorExtensions.cs
index 0b7e988af3..1839d3309f 100644
--- a/src/Microsoft.AspNetCore.Server.Kestrel/Internal/Infrastructure/MemoryPoolIteratorExtensions.cs
+++ b/src/Microsoft.AspNetCore.Server.Kestrel/Internal/Infrastructure/MemoryPoolIteratorExtensions.cs
@@ -6,14 +6,11 @@ using System.Diagnostics;
 using System.Runtime.CompilerServices;
 using System.Text;
 using Microsoft.AspNetCore.Http;
-using Microsoft.AspNetCore.Server.Kestrel.Internal.Http;
 
 namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Infrastructure
 {
     public static class MemoryPoolIteratorExtensions
     {
-        private static readonly Encoding _utf8 = Encoding.UTF8;
-
         public const string Http10Version = "HTTP/1.0";
         public const string Http11Version = "HTTP/1.1";