以下是可能的改进来源:

一般

利用分析器来发现应用程序中的内存泄漏和性能问题。我个人建议dotTrace 在生产环境和性能分析期间，以发布模式(而不是调试模式)运行站点。释放模式要快得多。调试模式可以在您自己的代码中隐藏性能问题。

缓存

Use CompiledQuery.Compile() recursively avoiding recompilation of your query expressions Cache not-prone-to-change content using OutputCacheAttribute to save unnecessary and action executions Use cookies for frequently accessed non sensitive information Utilize ETags and expiration - Write your custom ActionResult methods if necessary Consider using the RouteName to organize your routes and then use it to generate your links, and try not to use the expression tree based ActionLink method. Consider implementing a route resolution caching strategy Put repetitive code inside your PartialViews, avoid render it xxxx times: if you end up calling the same partial 300 times in the same view, probably there is something wrong with that. Explanation And Benchmarks

路由

使用Url。RouteUrl("User"， new {username = "joeuser"})指定路由。ASP。NET MVC性能由Rudi Benkovic编写 缓存路由解析使用这个助手UrlHelperCached ASP。NET MVC性能由Rudi Benkovic编写

安全

使用表单身份验证，将您经常访问的敏感数据保存在 身份验证票

DAL

当通过LINQ访问数据时，依赖于IQueryable 利用存储库模式 配置您的查询，即优步Profiler 考虑二级缓存，为你的查询添加一个范围和一个超时，即NHibernate二级缓存

负载平衡

利用反向代理，在应用实例中分散客户端负载。Stack Overflow使用HAProxy (MSDN)。 使用异步控制器来实现依赖于外部资源处理的操作。

客户端

Optimize your client side, use a tool like YSlow for suggestions to improve performance Use AJAX to update components of your UI, avoid a whole page update when possible. Consider implement a pub-sub architecture -i.e. Comet- for content delivery against reload based in timeouts. Move charting and graph generation logic to the client side if possible. Graph generation is a expensive activity. Deferring to the client side your server from an unnecessary burden, and allows you to work with graphs locally without make a new request (i.e. Flex charting, jqbargraph, MoreJqueryCharts). Use CDN's for scripts and media content to improve loading on the client side (i.e. Google CDN) Minify -Compile- your JavaScript in order to improve your script size Keep cookie size small, since cookies are sent to the server on every request. Consider using DNS and Link Prefetching when possible.

全局配置

If you use Razor, add the following code in your global.asax.cs, by default, Asp.Net MVC renders with an aspx engine and a razor engine. This only uses the RazorViewEngine. ViewEngines.Engines.Clear(); ViewEngines.Engines.Add(new RazorViewEngine()); Add gzip (HTTP compression) and static cache (images, css, ...) in your web.config <system.webServer> <urlCompression doDynamicCompression="true" doStaticCompression="true" dynamicCompressionBeforeCache="true"/> </system.webServer> Remove unused HTTP Modules Flush your HTML as soon as it is generated (in your web.config) and disable viewstate if you are not using it <pages buffer="true" enableViewState="false">

我做了上面所有的答案，但还是没有解决我的问题。

最后，我解决了我的网站加载缓慢的问题，在发布配置文件PrecompileBeforePublish设置为真。如果你想使用msbuild，你可以使用这个参数:

 /p:PrecompileBeforePublish=true

这真的很有帮助。现在我的MVC ASP。NET加载速度快10倍。

以下是要做的事情

内核模式缓存 管道模式 移除未使用的模块 runAllManagedModulesForAllRequests 不要使用wwwroot 删除未使用的视图引擎和语言

这不是一个惊天动地的优化，但我想我要把它扔在那里-使用CDN的jQuery，等等。

引用ScottGu自己的话:微软Ajax CDN使你能够显著提高ASP的性能。NET Web Forms和ASP。asp.net MVC应用程序使用ASP。NET AJAX或jQuery。这项服务是免费的，不需要任何注册，可以用于商业和非商业目的。

我们甚至使用CDN为我们的web部件在Moss使用jQuery。

我还要补充一点:

Use Sprites: Sprites are a great thing to reduce a request. You merge all your images into a single one and use CSS to get to good part of the sprite. Microsoft provides a good library to do it: Sprite and Image Optimization Preview 4. Cache Your server object: If you have some references lists or data which will change rarely, you can cache them into memory instead of querying database every time. Use ADO.NET instead of Entity Framework: EF4 or EF5 are great to reduce development time, but it will be painful to optimize. It's more simple to optimize a stored procedure than Entity Framework. So you should use store procedures as much as possible. Dapper provides a simple way to query and map SQL with very good performance. Cache Page or partial page: MVC provides some easy filter to cache page according to some parameters, so use it. Reduce Database calls: You can create a unique database request that returns multiple objects. Check on Dapper website. Always have a clean architecture: Have a clean n-tiers architecture, even on a small project. It will help you to keep your code clean, and it will be easier to optimize it if needed. You can take a look at this template "Neos-SDI MVC Template" which will create a clean architecture for you with lots of performance improvements by default (check MvcTemplate website).

使用最新版本的任务并行库(TPL)，根据. net版本。必须根据不同的用途选择正确的TPL模块。