Revert changes to the BenchmarkProfiling tool.

Author: tillig

bench/Autofac.BenchmarkProfiling/Program.cs

@@ -1,8 +1,5 @@
-using System.Diagnostics;
-using System.Reflection;
-using BenchmarkDotNet.Running;
+using BenchmarkDotNet.Running;
 using BenchmarkDotNet.Toolchains.InProcess.NoEmit;
-using Autofac.Core;
 
 namespace Autofac.BenchmarkProfiling;
 
@@ -13,11 +10,6 @@ class Program
 {
     static void Main(string[] args)
     {
-        if (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("AUTOFAC_SCOPE_DIAGNOSTICS")))
-        {
-            AppContext.SetSwitch("Autofac.ScopeIsolatedDiagnostics", true);
-        }
-
         // Pick a benchmark.
         var availableBenchmarks = Benchmarks.BenchmarkSet.All;
 
@@ -106,20 +98,6 @@ void workloadAction(int repeat)
         // Warmup.
         workloadAction(100);
 
-        if (int.TryParse(Environment.GetEnvironmentVariable("AUTOFAC_MEASURE_ITERATIONS"), out var measurementIterations) &&
-            measurementIterations > 0)
-        {
-            var sw = Stopwatch.StartNew();
-            workloadAction(measurementIterations);
-            sw.Stop();
-            var perIteration = sw.Elapsed.TotalMilliseconds / measurementIterations;
-            Console.WriteLine(
-                "[Profiling] Duration: {0} iterations took {1:F2} ms (avg {2:F4} ms)",
-                measurementIterations,
-                sw.Elapsed.TotalMilliseconds,
-                perIteration);
-        }
-
         // Now start a new thread.
         var runThread = new Thread(new ThreadStart(() =>
         {
@@ -134,8 +112,6 @@ void workloadAction(int repeat)
         runThread.Join();
 
         cleanupAction.InvokeSingle();
-
-        LogScopeDiagnosticsIfEnabled();
     }
 
     private static void PrintBenchmarks(Type[] availableBenchmarks)
@@ -161,36 +137,4 @@ private static void PrintCases(BenchmarkRunInfo benchRunInfo)
             }
         }
     }
-
-    private static void LogScopeDiagnosticsIfEnabled()
-    {
-        if (!AppContext.TryGetSwitch("Autofac.ScopeIsolatedDiagnostics", out var enabled) || !enabled)
-        {
-            return;
-        }
-
-        var diagnosticsType = typeof(IComponentRegistry).Assembly.GetType("Autofac.Core.Registration.ScopeIsolatedServiceDiagnostics");
-        var snapshotProperty = diagnosticsType?.GetProperty(
-            "Snapshot",
-            BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static);
-
-        if (snapshotProperty?.GetValue(null) is object snapshot)
-        {
-            var cacheHits = (long)(snapshot.GetType().GetProperty("CacheHits")?.GetValue(snapshot) ?? 0L);
-            var cacheMisses = (long)(snapshot.GetType().GetProperty("CacheMisses")?.GetValue(snapshot) ?? 0L);
-            var cacheAdds = (long)(snapshot.GetType().GetProperty("CacheAdds")?.GetValue(snapshot) ?? 0L);
-            var cacheRemovals = (long)(snapshot.GetType().GetProperty("CacheRemovals")?.GetValue(snapshot) ?? 0L);
-            var cachedInitializations = (long)(snapshot.GetType().GetProperty("CachedInitializations")?.GetValue(snapshot) ?? 0L);
-            var discardedInfos = (long)(snapshot.GetType().GetProperty("ServiceInfoDiscarded")?.GetValue(snapshot) ?? 0L);
-
-            Console.WriteLine(
-                "[Profiling] Scope cache stats -> Hits={0}, Misses={1}, Adds={2}, Removes={3}, CachedInit={4}, Discarded={5}",
-                cacheHits,
-                cacheMisses,
-                cacheAdds,
-                cacheRemovals,
-                cachedInitializations,
-                discardedInfos);
-        }
-    }
 }