测量网站
我想知道是否可以安装或使用任何在线服务来衡量您网站的性能？我见过很多人只是检查图像、外部文件等的下载速度。但是是否可以测量 asp/php 代码执行所需的时间？
我有一个网站运行得有点慢，如果有一些应用程序/服务指导优化的地方，那就太好了。
I was wondering if it is possible to install or use any online service to measure your website's performance? I've seen many just checking the download speed of images, external files etc. But is it possible to meassure how long asp/php code takes to execute?
I have a site running a bit slowly, and it would be very nice with some app/service guiding where to optimize.
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你可以分析代码。有几个问题详细介绍了多种语言的可用分析器。 .Net 或 Php 例如。还有一些专门处理 asp 的，像这个，我相信使用免费的分析器。
you could profile the code. There are several questions detailing available profilers for many languages. .Net or Php for example. also there are some which deal with asp specifcally, like this one, using a free profiler I believe.
YSlow 是衡量网站客户端性能的优秀工具。它还会建议您应该采取哪些措施来提高性能。
YSlow is an excellent tool for measuring client side performance of the web site. It will also suggest what you should do in order to improve performance.
查看 AlertGrid，基本上，它是一个应用程序跟踪应用程序。您可以使用它来跟踪任何指标或统计数据，但您必须自己收集它们。它提供警报（警报规则编辑器）和数据可视化，它不是经典的分析器工具，但您仍然可能会发现它很有用。
Check out AlertGrid, basically, it is an app tracing app. You can use it to track ANY metrics or statistics but you have to collect them on your own. It provides alerting (alert rule editor) and data visualisation, it's not a classical profiler tool, but still you may find it useful.