Visual Basic 2015 Unleashed

PerfTips: Investigating Code Performance

Visual Studio 2015 introduces a new debugging tool called PerfTips, which stands for Performance ToolTips. PerfTips allows you to measure how long it takes to execute a specific code block, and it shows the elapsed time near the code. This feature is very useful for understanding the behavior of your code over long-running operations, such as CPU-intensive work. To understand how PerfTips works, consider the following code, which simply downloads the content of the RSS feed from my blog, using the System.Net.WebClient class and its DownloadString method:

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Using client As New WebClient    client.DownloadString (        New Uri("http://community.visual-basic.it/Alessandro/rss.aspx")) ...