diff --git a/IntegrationTests/tests_04_performance/test_01_resources/test_future_erase_result.swift b/IntegrationTests/tests_04_performance/test_01_resources/test_future_erase_result.swift
new file mode 100644
index 0000000000..d2d565efd8
--- /dev/null
+++ b/IntegrationTests/tests_04_performance/test_01_resources/test_future_erase_result.swift
@@ -0,0 +1,40 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the SwiftNIO open source project
+//
+// Copyright (c) 2021 Apple Inc. and the SwiftNIO project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of SwiftNIO project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+import NIO
+
+func run(identifier: String) {
+    measure(identifier: identifier) {
+        @inline(never)
+        func doEraseResult(loop: EventLoop) {
+            // In an ideal implementation the only allocation is this promise.
+            let p = loop.makePromise(of: Int.self)
+            let f = p.futureResult.map { (r: Int) -> Void in
+                // This closure is a value-to-no-value erase that closes over nothing.
+                // Ideally this would not allocate.
+                return
+            }.map { (_: Void) -> Void in
+                // This closure is a nothing-to-nothing map, basically a "completed" observer. This should
+                // also not allocate, but it has a separate code path to the above.
+            }
+            p.succeed(0)
+        }
+
+        let el = EmbeddedEventLoop()
+        for _ in 0..<1000  {
+            doEraseResult(loop: el)
+        }
+        return 1000
+    }
+}
diff --git a/docker/docker-compose.1604.52.yaml b/docker/docker-compose.1604.52.yaml
index 0461ab79d6..79e926112e 100644
--- a/docker/docker-compose.1604.52.yaml
+++ b/docker/docker-compose.1604.52.yaml
@@ -41,6 +41,7 @@ services:
       - MAX_ALLOCS_ALLOWED_encode_1000_ws_frames_holding_buffer_with_space=3
       - MAX_ALLOCS_ALLOWED_encode_1000_ws_frames_new_buffer=3050
       - MAX_ALLOCS_ALLOWED_encode_1000_ws_frames_new_buffer_with_space=3050
+      - MAX_ALLOCS_ALLOWED_future_erase_result=4050
       - MAX_ALLOCS_ALLOWED_future_lots_of_callbacks=60050
       - MAX_ALLOCS_ALLOWED_modifying_1000_circular_buffer_elements=0
       - MAX_ALLOCS_ALLOWED_modifying_byte_buffer_view=2050
diff --git a/docker/docker-compose.1604.53.yaml b/docker/docker-compose.1604.53.yaml
index d5368b9c34..d48b152344 100644
--- a/docker/docker-compose.1604.53.yaml
+++ b/docker/docker-compose.1604.53.yaml
@@ -41,6 +41,7 @@ services:
       - MAX_ALLOCS_ALLOWED_encode_1000_ws_frames_holding_buffer_with_space=3
       - MAX_ALLOCS_ALLOWED_encode_1000_ws_frames_new_buffer=3050
       - MAX_ALLOCS_ALLOWED_encode_1000_ws_frames_new_buffer_with_space=3050
+      - MAX_ALLOCS_ALLOWED_future_erase_result=4050
       - MAX_ALLOCS_ALLOWED_future_lots_of_callbacks=60050
       - MAX_ALLOCS_ALLOWED_modifying_1000_circular_buffer_elements=0
       - MAX_ALLOCS_ALLOWED_modifying_byte_buffer_view=2050
diff --git a/docker/docker-compose.1804.51.yaml b/docker/docker-compose.1804.51.yaml
index f3c2110cb6..9cc6504252 100644
--- a/docker/docker-compose.1804.51.yaml
+++ b/docker/docker-compose.1804.51.yaml
@@ -41,6 +41,7 @@ services:
       - MAX_ALLOCS_ALLOWED_encode_1000_ws_frames_holding_buffer_with_space=3
       - MAX_ALLOCS_ALLOWED_encode_1000_ws_frames_new_buffer=3050
       - MAX_ALLOCS_ALLOWED_encode_1000_ws_frames_new_buffer_with_space=3050
+      - MAX_ALLOCS_ALLOWED_future_erase_result=4050
       - MAX_ALLOCS_ALLOWED_future_lots_of_callbacks=60050
       - MAX_ALLOCS_ALLOWED_modifying_1000_circular_buffer_elements=0
       - MAX_ALLOCS_ALLOWED_modifying_byte_buffer_view=6050
diff --git a/docker/docker-compose.2004.54.yaml b/docker/docker-compose.2004.54.yaml
index c8abb4c4b7..bf31598aaf 100644
--- a/docker/docker-compose.2004.54.yaml
+++ b/docker/docker-compose.2004.54.yaml
@@ -41,6 +41,7 @@ services:
       - MAX_ALLOCS_ALLOWED_encode_1000_ws_frames_holding_buffer_with_space=3
       - MAX_ALLOCS_ALLOWED_encode_1000_ws_frames_new_buffer=3050
       - MAX_ALLOCS_ALLOWED_encode_1000_ws_frames_new_buffer_with_space=3050
+      - MAX_ALLOCS_ALLOWED_future_erase_result=4050
       - MAX_ALLOCS_ALLOWED_future_lots_of_callbacks=60050
       - MAX_ALLOCS_ALLOWED_modifying_1000_circular_buffer_elements=0
       - MAX_ALLOCS_ALLOWED_modifying_byte_buffer_view=2050
diff --git a/docker/docker-compose.2004.main.yaml b/docker/docker-compose.2004.main.yaml
index 127f83e9f6..ac3fbf7209 100644
--- a/docker/docker-compose.2004.main.yaml
+++ b/docker/docker-compose.2004.main.yaml
@@ -41,6 +41,7 @@ services:
       - MAX_ALLOCS_ALLOWED_encode_1000_ws_frames_holding_buffer_with_space=3
       - MAX_ALLOCS_ALLOWED_encode_1000_ws_frames_new_buffer=3050
       - MAX_ALLOCS_ALLOWED_encode_1000_ws_frames_new_buffer_with_space=3050
+      - MAX_ALLOCS_ALLOWED_future_erase_result=4050
       - MAX_ALLOCS_ALLOWED_future_lots_of_callbacks=60050
       - MAX_ALLOCS_ALLOWED_modifying_1000_circular_buffer_elements=0
       - MAX_ALLOCS_ALLOWED_modifying_byte_buffer_view=2050