.net程序员应对大规模高性能网站的一点思考 -

在很多大型网站的终极架构中都会有用c或c++写的模块，例如memcached，FastDFS，toyota TT等等。而更令微软程序员们郁闷的是这些类库往往都是在linux或者unix机器上经受过大量的性能和稳定性测试，而在windows的服务器上是否稳定，是否可以施展其高性能，就是一个未知数；例如据说将memcached server装在windows server上虽然可以装的上，但是却不是那么高效，还有可能会不稳定，所以我们公司用的memcached server只好部署在linux上。还有一点这些高性能，分布式系统或模块提供客户端的时候也往往是先提供php，java的，最后才出.net的，有的甚至没有.net 的。

其实大规模的网站规模越大和网页语言本身性能关系越小，不管是php，java还是asp.net,都很少会造成大规模网站的性能瓶颈，性能瓶颈往往出在大规模的数据存储的读写上。而在解决存储问题时出现的解决方案大多是用c或c++写的，这和c，c++优秀的性能是分不开的。

作为微软的程序员，我们应该如何对待这个问题呢？我们有几种可选方案：
1. 自己开发应对高性能的模块，并将这些高性能模块在windows下做充分的压力考验；
2. 期待微软开发出我们需要的高性能的模块，然后我们来调用
3. 让这些高性能的模块在linux或者unix下运行，我们自行开发这些模块的存储客户端
…. 如果你有其他的方案，请补充

上面提到的三个方案，方案1如果用c#开发，恐怕性能上很难与c，c++开发的模块相媲美；方案二，恐怕我们等的黄花菜都凉啦，还看不多希望，例如memcached出来后，我很希望微软也有类似的分布式缓存系统，但是等到现在代号从Velocity到Windows AppFabric也没看到谁真的在大点的网站系统中实际用过它。相比方案1，2方案3或许更可行，让memcached，或no-sql db运行在linux或者unix上，然后用.net 的客户端去访问他们。

我提上面的问题并非只想发发牢骚，希望看看大家怎么看待这个问题，希望能够集思广益，看我们.net程序员如何更好应对大规模网站开发。

我无意于那个语言好，那个语言坏的争论，存在的各个语言，肯定各有所长。也请大家不要做语言之争。

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