I must bring an amazing tool to your notice which i have used sometime back. AVICode Interceptor Studio. In my previous company we used this wonderful tool to profile the webapplication (This is supposed to be the single largest web application in the world and the largest civilian IT project ever done). The performance team did wonders with the help of this magnificent tool. It is a pain to configure it, but that is a one time activity and i would say it is worth the time. Checkout this page for details.

谢谢, 詹姆斯

不要忘记nProf -一个非常好的免费分析器。

对我来说，SpeedTrace是市场上最好的工具，因为它不仅能帮助您找到应用程序中的瓶颈。它还可以帮助你在故障排除场景中找到为什么你的应用程序崩溃，你的安装没有安装，你的应用程序挂起，你的应用程序性能有时很差取决于数据输入，例如，识别缓慢的db事务。

蚂蚁分析器。我用过的不多，但我对ANTS并没有什么抱怨。可视化真的很有帮助。

我以前跟红门的侧写师合作过。帮我完成了任务。

如果你是ASP。你可以尝试MVCMiniProfiler (http://benjii.me/2011/07/using-the-mvc-mini-profiler-with-entity-framework/)