软件测试中有关Emit与Reflection性能对比测试

发布: 2009-5-21 10:17 | 作者: 不详 | 来源: 测试时代采编 | 查看: 228次 | 进入软件测试论坛讨论

TestEntity entity2 = new TestEntity();
entity2.String1 = \"String 1 in te2\";
entity2.Int1 = 999;
entity2.Datetime1 = new DateTime(2009, 12, 1);

int loops = 10000;
Stopwatch sw = new Stopwatch();

sw.Start();
for (int i = 0; i < loops; i++)
{
    EmitTest.GetValueReflect(typeof(TestEntity), \"String1\", entity1);
    EmitTest.GetValueReflect(typeof(TestEntity), \"Int1\", entity1);
    EmitTest.GetValueReflect(typeof(TestEntity), \"Datetime1\", entity1);

    EmitTest.GetValueReflect(typeof(TestEntity), \"String1\", entity2);
    EmitTest.GetValueReflect(typeof(TestEntity), \"Int1\", entity2);
    EmitTest.GetValueReflect(typeof(TestEntity), \"Datetime1\", entity2);
}
sw.Stop();
Console.WriteLine(sw.ElapsedMilliseconds);

sw.Reset();
sw.Start();
for (int i = 0; i < loops; i++)
{
    EmitTest.GetValueEmit(typeof(TestEntity), \"String1\", entity1);
    EmitTest.GetValueEmit(typeof(TestEntity), \"Int1\", entity1);
    EmitTest.GetValueEmit(typeof(TestEntity), \"Datetime1\", entity1);

    EmitTest.GetValueEmit(typeof(TestEntity), \"String1\", entity2);
    EmitTest.GetValueEmit(typeof(TestEntity), \"Int1\", entity2);
    EmitTest.GetValueEmit(typeof(TestEntity), \"Datetime1\", entity2); }
sw.Stop();
Console.WriteLine(sw.ElapsedMilliseconds);

sw.Reset();
sw.Start();
for (int i = 0; i < loops; i++)
{
    EmitTest.GetValueEmitWithCache(typeof(TestEntity), \"String1\", entity1);
    EmitTest.GetValueEmitWithCache(typeof(TestEntity), \"Int1\", entity1);
    EmitTest.GetValueEmitWithCache(typeof(TestEntity), \"Datetime1\", entity1);

    EmitTest.GetValueEmitWithCache(typeof(TestEntity), \"String1\", entity2);
    EmitTest.GetValueEmitWithCache(typeof(TestEntity), \"Int1\", entity2);
    EmitTest.GetValueEmitWithCache(typeof(TestEntity), \"Datetime1\", entity2);
}
sw.Stop();
Console.WriteLine(sw.ElapsedMilliseconds);
结果大致如下:
470
31668
32
这个测试情况下，使用Emit性能大致提高10多倍。