Example #1
0
        public void PerformanceReportWithNoArguments(int count)
        {
            Trace.WriteLine($"#{count} 次调用:");

            double time = StopwatchHelper.Caculate(count, () =>
            {
                ClassB b = new ClassB();
            }).TotalMilliseconds;

            Trace.WriteLine($"‘New’耗时 {time} milliseconds");

            double time2 = StopwatchHelper.Caculate(count, () =>
            {
                ClassB b = CreateObjectFactory.CreateInstance <ClassB>();
            }).TotalMilliseconds;

            Trace.WriteLine($"‘Emit 工厂’耗时 {time2} milliseconds");

            double time3 = StopwatchHelper.Caculate(count, () =>
            {
                ClassB b = ExpressionCreateObject.CreateInstance <ClassB>();
            }).TotalMilliseconds;

            Trace.WriteLine($"‘Expression’耗时 {time3} milliseconds");

            double time4 = StopwatchHelper.Caculate(count, () =>
            {
                ClassB b = ExpressionCreateObjectFactory.CreateInstance <ClassB>();
            }).TotalMilliseconds;

            Trace.WriteLine($"‘Expression 工厂’耗时 {time4} milliseconds");

            double time5 = StopwatchHelper.Caculate(count, () =>
            {
                ClassB b = Activator.CreateInstance <ClassB>();
                //ClassB b = Activator.CreateInstance(typeof(ClassB)) as ClassB;
            }).TotalMilliseconds;

            Trace.WriteLine($"‘Activator.CreateInstance’耗时 {time5} milliseconds");


            /**
             #1000000 次调用:
             *  ‘New’耗时 21.7474 milliseconds
             *  ‘Emit 工厂’耗时 174.088 milliseconds
             *  ‘Expression’耗时 42.9405 milliseconds
             *  ‘Expression 工厂’耗时 162.548 milliseconds
             *  ‘Activator.CreateInstance’耗时 67.3712 milliseconds
             * */
        }
Example #2
0
        public void PerformanceReportWithArguments(int count)
        {
            Trace.WriteLine($"#{count} 次调用:");

            double time = StopwatchHelper.Caculate(count, () =>
            {
                ClassA a = new ClassA(new ClassB());
            }).TotalMilliseconds;

            Trace.WriteLine($"‘New’耗时 {time} milliseconds");

            double time2 = StopwatchHelper.Caculate(count, () =>
            {
                ClassA a = CreateObjectFactory.CreateInstance <ClassA>(new ClassB());
            }).TotalMilliseconds;

            Trace.WriteLine($"‘Emit 工厂’耗时 {time2} milliseconds");

            double time4 = StopwatchHelper.Caculate(count, () =>
            {
                ClassA a = ExpressionCreateObjectFactory.CreateInstance <ClassA>(new ClassB());
            }).TotalMilliseconds;

            Trace.WriteLine($"‘Expression 工厂’耗时 {time4} milliseconds");

            double time5 = StopwatchHelper.Caculate(count, () =>
            {
                ClassA a = Activator.CreateInstance(typeof(ClassA), new ClassB()) as ClassA;
            }).TotalMilliseconds;

            Trace.WriteLine($"‘Activator.CreateInstance’耗时 {time5} milliseconds");


            /**
             #1000000 次调用:
             *  ‘New’耗时 29.3612 milliseconds
             *  ‘Emit 工厂’耗时 634.2714 milliseconds
             *  ‘Expression 工厂’耗时 620.2489 milliseconds
             *  ‘Activator.CreateInstance’耗时 588.0409 milliseconds
             * */
        }
Example #3
0
        public void ExpressionType()
        {
            var instance = ExpressionCreateObjectFactory.CreateInstance <ClassB>();

            Assert.Equal(default(int), instance.GetInt());
        }