Skip to main content

Database profiling in Visual Studio

Visual Studio 2019 version 16.3 extends the Performance Profiler with a new ‘Database’ option.  This will enable the new Database tool that captures all database activity during your profiling session.

Remark: The database tool works with .NET Core projects  using either ADO.NET or Entity Framework Core. It also works on traces collected using dotnet trace which means we can collect data anywhere that .NET Core runs (including Linux!) and analyze that data in Visual Studio.

Let’s try it:

  • Open the Performance Profiler in Visual Studio by clicking Debug > Performance Profiler.
  • Select the checkbox next to “Database” to enable the tool.

  • Click on Start to start the profiling session. Now interact with your application in the ways you’re interested in investigating. When you are done click ‘Stop collection’.

  • Now you get a table of all the queries that happened during your profiling session along with a graph that shows when and how many queries happen over time.

  • After identifying a query that warrants further investigation, you can go to the related code by right-clicking on a row, and selecting “Go To Source File”!
Labels:

Popular posts from this blog

Azure DevOps/ GitHub emoji

I’m really bad at remembering emoji’s. So here is cheat sheet with all emoji’s that can be used in tools that support the github emoji markdown markup: All credits go to rcaviers who created this list.
Read more

Podman– Command execution failed with exit code 125

After updating WSL on one of the developer machines, Podman failed to work. When we took a look through Podman Desktop, we noticed that Podman had stopped running and returned the following error message: Error: Command execution failed with exit code 125 Here are the steps we tried to fix the issue: We started by running podman info to get some extra details on what could be wrong: >podman info OS: windows/amd64 provider: wsl version: 5.3.1 Cannot connect to Podman. Please verify your connection to the Linux system using `podman system connection list`, or try `podman machine init` and `podman machine start` to manage a new Linux VM Error: unable to connect to Podman socket: failed to connect: dial tcp 127.0.0.1:2655: connectex: No connection could be made because the target machine actively refused it. That makes sense as the podman VM was not running. Let’s check the VM: >podman machine list NAME         ...
Read more

Cleaner switch expressions with pattern matching in C#

Ever find yourself mapping multiple string values to the same result? Being a C# developer for a long time, I sometimes forget that the C# has evolved so I still dare to chain case labels or reach for a dictionary. Of course with pattern matching this is no longer necessary. With pattern matching, you can express things inline, declaratively, and with zero repetition. A small example I was working on a small script that should invoke different actions depending on the environment. As our developers were using different variations for the same environment e.g.  "tst" alongside "test" , "prd" alongside "prod" .  We asked to streamline this a long time ago, but as these things happen, we still see variations in the wild. This brought me to the following code that is a perfect example for pattern matching: The or keyword here is a logical pattern combinator , not a boolean operator. It matches if either of the specified pattern...
Read more