使用StopWatch类测量C#/异步数据访问

Mik*_*e W 7 c# asynchronous

我有以下代码,似乎Elapsed Milliseconds不准确:

    public async Task<ActionResult> Index()
    {
        try
        {
            var connString = RoleEnvironment.IsEmulated
                                 ? ConfigurationManager.ConnectionStrings["Poc"].ConnectionString
                                 : ConfigurationManager.ConnectionStrings["PocVm"].ConnectionString;

            var repository = new AccountRepository(connString);
            var stopWatch = new Stopwatch();
            stopWatch.Start();

            var accounts = await repository.GetAll();

            stopWatch.Stop();
            ViewBag.Accounts = accounts;
            ViewBag.VmStatus = stopWatch.ElapsedMilliseconds;
        }
        catch (Exception e)
        {
            blah blah blah...
        }


        return View();
    }
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这看起来是正确的还是我错过了一些非常明显的东西?

Jai*_*oso 0

这对我来说看起来完全没问题。

如果 Repository.GetAll 方法不是异步的,则可能会出现错误,希望它具有如下所示的签名:

    public async Task<IEnumerable<Account>> GetAll();
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