measuring the Unit and Issue tests invocation time #291

Author: maximv

src/FastExpressionCompiler/FastExpressionCompiler.cs

@@ -5320,6 +5320,28 @@ static ILGeneratorHacks()
 
         /// <summary>Efficiently returns the next variable index, hopefully without unnecessary allocations.</summary>
         public static int GetNextLocalVarIndex(this ILGenerator il, Type t) => _getNextLocalVarIndex(il, t);
+
+        // todo: @perf add MultiOpCodes emit to save on the EnsureCapacity calls
+        // todo: @perf create EmitMethod without additional GetParameters call
+        /*
+        public virtual void EmitCall(OpCode opcode, MethodInfo methodInfo, int paramCount)
+        { 
+            int tk = GetMethodToken(methodInfo, optionalParameterTypes, false);
+            EnsureCapacity(7);
+            InternalEmit(opcode);
+ 
+            int stackchange = 0;
+            if (methodInfo.ReturnType != typeof(void))
+                stackchange++;
+            stackchange -= paramCount;
+            if (!methodInfo.IsStatic)
+                stackchange--;
+
+            UpdateStackSize(opcode, stackchange); 
+            RecordTokenFixup();
+            PutInteger4(tk);
+        }
+        */ 
     }
 
     internal struct LiveCountArray<T>

test/FastExpressionCompiler.TestsRunner.Net472/Program.cs

@@ -84,6 +84,8 @@ void Run(Func<int> run, string name = null)
                 Run(new ValueTypeTests().Run);
                 Run(new FastExpressionCompiler.LightExpression.UnitTests.NestedLambdasSharedToExpressionCodeStringTest().Run);
                 Run(new FastExpressionCompiler.LightExpression.UnitTests.LightExpressionTests().Run);
+
+                Console.WriteLine($"============={Environment.NewLine}UnitTests are passing in {sw.ElapsedMilliseconds} ms.");
             });
 
             var issueTests = Task.Run(() => 
@@ -181,6 +183,8 @@ void Run(Func<int> run, string name = null)
 
                 Run(new Issue284_Invalid_Program_after_Coalesce().Run);
                 Run(new FastExpressionCompiler.LightExpression.IssueTests.Issue284_Invalid_Program_after_Coalesce().Run);
+
+                Console.WriteLine($"============={Environment.NewLine}IssueTests are passing in {sw.ElapsedMilliseconds} ms.");
             });
 
             Task.WaitAll(unitTests, issueTests);

test/FastExpressionCompiler.TestsRunner/Program.cs

@@ -90,6 +90,9 @@ void Run(Func<int> run, string name = null)
                 Run(new ValueTypeTests().Run);
                 Run(new FastExpressionCompiler.LightExpression.UnitTests.NestedLambdasSharedToExpressionCodeStringTest().Run);
                 Run(new FastExpressionCompiler.LightExpression.UnitTests.LightExpressionTests().Run);
+                
+                Console.WriteLine($"============={Environment.NewLine}UnitTests are passing in {sw.ElapsedMilliseconds} ms.");
+
             });
 
             var issueTests = Task.Run(() => 
@@ -191,6 +194,8 @@ void Run(Func<int> run, string name = null)
 
                 Run(new Issue284_Invalid_Program_after_Coalesce().Run);
                 Run(new FastExpressionCompiler.LightExpression.IssueTests.Issue284_Invalid_Program_after_Coalesce().Run);
+
+                Console.WriteLine($"============={Environment.NewLine}IssueTests are passing in {sw.ElapsedMilliseconds} ms.");
             });
 
             Task.WaitAll(unitTests, issueTests);