diff --git a/Framework/Logging/Stopwatch.cs b/Framework/Logging/Stopwatch.cs
index 830b49a..fddd8b5 100644
--- a/Framework/Logging/Stopwatch.cs
+++ b/Framework/Logging/Stopwatch.cs
@@ -51,7 +51,7 @@ namespace Logging
             return new Stopwatch(log, name, debug);
         }
 
-        public void End(string msg = "", int skipFrames = 0)
+        public TimeSpan End(string msg = "", int skipFrames = 0)
         {
             var duration = DateTime.UtcNow - start;
             var entry = $"{name} {msg} ({Time.FormatDuration(duration)})";
@@ -64,6 +64,8 @@ namespace Logging
             {
                 log.Log(entry);
             }
+
+            return duration;
         }
     }
 }
diff --git a/Tests/CodexContinuousTests/Tests/TwoClientTest.cs b/Tests/CodexContinuousTests/Tests/TwoClientTest.cs
index 12a4d3f..bf08bae 100644
--- a/Tests/CodexContinuousTests/Tests/TwoClientTest.cs
+++ b/Tests/CodexContinuousTests/Tests/TwoClientTest.cs
@@ -1,5 +1,6 @@
 using CodexPlugin;
 using FileUtils;
+using Logging;
 using NUnit.Framework;
 using Utils;
 
@@ -15,16 +16,16 @@ namespace ContinuousTests.Tests
 
         private ContentId? cid;
         private TrackedFile file = null!;
+        private readonly ByteSize size = 80.MB();
 
         [TestMoment(t: Zero)]
         public void UploadTestFile()
         {
-            var size = 80.MB();
             file = FileManager.GenerateFile(size);
 
-            AssertBytesStoredMetric(size, Nodes[0], () =>
+            AssertBytesStoredMetric(Nodes[0], () =>
             {
-                cid = Nodes[0].UploadFile(file);
+                LogBytesPerMillisecond(() => cid = Nodes[0].UploadFile(file));
                 Assert.That(cid, Is.Not.Null);
             });
         }
@@ -32,15 +33,17 @@ namespace ContinuousTests.Tests
         [TestMoment(t: 10)]
         public void DownloadTestFile()
         {
-            var dl = Nodes[1].DownloadContent(cid!);
+            TrackedFile? dl = null;
+
+            LogBytesPerMillisecond(() => dl = Nodes[1].DownloadContent(cid!));
 
             file.AssertIsEqual(dl);
         }
 
-        private void AssertBytesStoredMetric(ByteSize uploadedSize, ICodexNode node, Action action)
+        private void AssertBytesStoredMetric(ICodexNode node, Action action)
         {
-            var lowExpected = uploadedSize.SizeInBytes;
-            var highExpected = uploadedSize.SizeInBytes * 1.2;
+            var lowExpected = size.SizeInBytes;
+            var highExpected = size.SizeInBytes * 1.2;
 
             var metrics = CreateMetricsAccess(node);
             var before = metrics.GetMetric(BytesStoredMetric);
@@ -57,5 +60,17 @@ namespace ContinuousTests.Tests
                 return highExpected > newBytes && newBytes > lowExpected;
             });
         }
+
+        private void LogBytesPerMillisecond(Action action)
+        {
+            var sw = Stopwatch.Begin(Log);
+            action();
+            var duration = sw.End();
+            double totalMs = duration.TotalMilliseconds;
+            double totalBytes = size.SizeInBytes;
+
+            var bytesPerMs = totalBytes / totalMs;
+            Log.Log($"Bytes per millisecond: {bytesPerMs}");
+        }
     }
 }
diff --git a/Tests/CodexTests/BasicTests/ContinuousSubstitute.cs b/Tests/CodexTests/BasicTests/ContinuousSubstitute.cs
index 1258f55..a5d3aea 100644
--- a/Tests/CodexTests/BasicTests/ContinuousSubstitute.cs
+++ b/Tests/CodexTests/BasicTests/ContinuousSubstitute.cs
@@ -2,6 +2,7 @@
 using CodexPlugin;
 using GethPlugin;
 using KubernetesWorkflow;
+using Logging;
 using MetricsPlugin;
 using NUnit.Framework;
 using Utils;
@@ -53,6 +54,18 @@ namespace Tests.BasicTests
             }
         }
 
+        private void LogBytesPerMillisecond(Action action)
+        {
+            var sw = Stopwatch.Begin(GetTestLog());
+            action();
+            var duration = sw.End();
+            double totalMs = duration.TotalMilliseconds;
+            double totalBytes = fileSize.SizeInBytes;
+
+            var bytesPerMs = totalBytes / totalMs;
+            Log($"Bytes per millisecond: {bytesPerMs}");
+        }
+
         [Test]
         public void PeerTest()
         {
@@ -122,7 +135,8 @@ namespace Tests.BasicTests
                 var metrics = Ci.WrapMetricsCollector(rc, primary);
                 var beforeBytesStored = metrics.GetMetric(BytesStoredMetric);
 
-                var contentId = primary.UploadFile(testFile);
+                ContentId contentId = null!;
+                LogBytesPerMillisecond(() => contentId = primary.UploadFile(testFile));
 
                 var low = fileSize.SizeInBytes;
                 var high = low * 1.2;
@@ -136,7 +150,8 @@ namespace Tests.BasicTests
                     return high > newBytes && newBytes > low;
                 }, TimeSpan.FromMinutes(1), TimeSpan.FromSeconds(2));
 
-                var downloadedFile = secondary.DownloadContent(contentId);
+                FileUtils.TrackedFile? downloadedFile = null;
+                LogBytesPerMillisecond(() => downloadedFile = secondary.DownloadContent(contentId));
 
                 testFile.AssertIsEqual(downloadedFile);
             });