LINQ - 获取总查询结果时间

Question

I would like to know if it is possible to get a query 'search results' time? Like how google has a time under each query - this is the time it took to complete the search .

How is this achievable? I haven't attempted anything (hence no code) because, well, I'm not sure where to start.

LINQPad has this feature built in, but I'd like to get something similar going on an internal mvc app I'm working on.

Thanks

Answer 1

You could use the Stopwatch class to measure the duration of the execution of your query (or any other code).

Stopwatch sw = Stopwatch.StartNew();
var result = query.ToList();
TimeSpan elapsed = sw.Elapsed;
Console.WriteLine("Query took: " + elapsed);

In the case of LINQ queries, don't forget that these are only evaluated on demand using deferred execution. Thus, you would probably want to force their enumeration (using, for example, ToList ) in order to get a true measure of their execution's duration.

Answer 2

您可以使用System.Diagnostics.Stopwatch对象，在页面开始渲染时启动它并在结束时停止它。