Have you ever encountered issues debugging applications in production? Or maybe spent hours trying to reproduce a bug on your local machine? We have, and we know how painful it is. Perhaps you've had to analyze a sudden "freeze" of the application without any logs? Familiar. Mysterious exceptions that occur only for a specific client? It happens. And then there’s profiling and identifying bottlenecks in performance.
.NET Diagnostics Expert
27h 6m 48s
English
Paid
Testing reveals the presence of errors but does not prove their absence. As long as we write code, there will be bugs. And it is we, the developers, who are responsible for finding and fixing them. Moreover, the problem is not always in our code - often the cause lies in the server configuration, the system, or something else.
Without mastering diagnostic tools and techniques, it is impossible to feel confident in the role of a .NET developer. That's why we created the online course .NET Diagnostics Expert - to provide you with this knowledge.
This is 11 intensive weeks of learning, where you'll get acquainted with powerful diagnostic tools through carefully prepared practical scenarios. We cover both Windows and Linux environments, working with .NET Framework and .NET Core - and go far beyond typical debugging.
Each module includes a homework assignment to reinforce the skills. Additionally, the course includes extra materials from guest mentors - recognized experts in diagnostics: Kevin Gosse, Christophe Nasarre, and Pavel Yosifovich.
Join us and become an expert in diagnosing .NET applications!
Additional
About the Author: Sebastian Solnica
Sebastian Solnica is a Polish .NET engineer and one of the most authoritative independent voices on the production-diagnostics side of .NET work — particularly the use of WinDbg, ETW, and the lower-level diagnostic tooling that separates senior .NET engineers from generic .NET developers.
His CourseFlix listing carries .NET Diagnostics Expert — a comprehensive treatment of production .NET diagnostics: memory dump analysis, performance investigation, the diagnostic-tooling landscape, and the patterns for debugging .NET issues that don't reproduce locally.
Material is paid and aimed at senior .NET engineers responsible for production .NET applications. For broader content, see CourseFlix's C# category page.
Watch Online 51 lessons
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/ #1: Course overview
All Course Lessons (51)
| # | Lesson Title | Duration | Access |
|---|---|---|---|
| 1 | Course overview Demo | 05:34 | |
| 2 | How debuggers work | 38:49 | |
| 3 | Symbols | 43:44 | |
| 4 | Debugging in Visual Studio | 41:46 | |
| 5 | Debugging in Visual Studio Code | 07:27 | |
| 6 | Debugging in WinDbg and LLDB | 01:04:56 | |
| 7 | CLI Diagnostic Tools for .NET | 11:01 | |
| 8 | Homework | 03:57 | |
| 9 | Event Tracing on Windows | 45:25 | |
| 10 | Event Tracing on Linux | 57:54 | |
| 11 | .NET Event Pipes | 53:01 | |
| 12 | Homework | 05:15 | |
| 13 | Process monitoring | 23:03 | |
| 14 | Process and system tracing tools | 45:17 | |
| 15 | Containerized processes | 33:27 | |
| 16 | System logs | 12:00 | |
| 17 | Homework | 04:15 | |
| 18 | CPU sampling | 41:54 | |
| 19 | Thread Time profiling | 01:01:52 | |
| 20 | .NET Profiler | 19:23 | |
| 21 | Homework | 01:43 | |
| 22 | Synchronization primitives | 20:25 | |
| 23 | Finding deadlocks in memory dumps | 37:09 | |
| 24 | Finding deadlocks in traces | 28:34 | |
| 25 | Homework | 05:13 | |
| 26 | Monitoring TCP & UDP connections | 16:06 | |
| 27 | Working with TCP & UDP network traces | 52:09 | |
| 28 | Network trace providers in .NET applications | 40:35 | |
| 29 | Homework | 02:40 | |
| 30 | Troubleshooting DNS | 44:43 | |
| 31 | Monitoring HTTP(S) requests in web applications | 01:07:56 | |
| 32 | Using network proxies in diagnostics | 37:41 | |
| 33 | Homework | 06:51 | |
| 34 | Assembly loading issues | 35:20 | |
| 35 | Exceptions | 01:04:59 | |
| 36 | Production debugging | 16:32 | |
| 37 | Homework | 02:52 | |
| 38 | Memory issues | 57:19 | |
| 39 | File I/O issues | 38:29 | |
| 40 | Other system issues | 32:20 | |
| 41 | Homework | 02:14 | |
| 42 | Interacting with the debugger | 41:48 | |
| 43 | Writing custom trace sources | 34:33 | |
| 44 | Homework | 02:07 | |
| 45 | Using ClrMD to inspect .NET applications | 35:04 | |
| 46 | Working with .NET EventPipe traces | 29:12 | |
| 47 | Homework | 03:32 | |
| 48 | Congratulations | 01:14 | |
| 49 | Christophe Nasarre - Webinar | 01:49:15 | |
| 50 | Kevin Gosse - Webinar | 01:12:25 | |
| 51 | Pavel Yosifovich - Webinar | 01:05:48 |
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Frequently asked questions
What prerequisites should I have before taking this course?
Before enrolling in this course, you should have a basic understanding of .NET programming and familiarity with debugging concepts. Experience with tools like Visual Studio and basic command-line operations will be beneficial, as the course covers advanced debugging techniques and tools specific to .NET applications.
What projects or skills will I develop through this course?
Throughout the course, you will gain skills in debugging and profiling .NET applications. You will learn to work with various diagnostic tools, such as Visual Studio, WinDbg, and LLDB, and perform tasks like monitoring processes, analyzing system logs, and profiling CPU and thread performance. Additionally, you will tackle real-world issues like finding deadlocks, managing assembly loading issues, and troubleshooting network communications.
Who is the target audience for this course?
This course is designed for .NET developers and software engineers who encounter complex debugging and diagnostic challenges in their work. It is particularly suited for those who need to resolve production issues, analyze performance bottlenecks, and ensure application reliability across different environments.
How does this course compare in depth and scope to similar courses?
This course offers a specialized focus on .NET diagnostics, covering a wide range of tools and techniques for debugging and profiling. It differs from more general debugging courses by providing in-depth coverage of .NET-specific issues, such as Event Tracing, .NET Profiler, and using ClrMD to inspect applications, which might not be covered in broader programming courses.
What specific tools and platforms are covered in the course?
The course covers a variety of diagnostic tools and platforms, including Visual Studio, Visual Studio Code, WinDbg, and LLDB for debugging. It also explores command-line diagnostic tools for .NET, Event Tracing on Windows and Linux, and network trace providers. Additionally, tools like the .NET Profiler and ClrMD are discussed for profiling and inspecting applications.
What topics are not covered in this course?
The course does not delve into non-.NET specific debugging techniques or tools outside the scope of .NET applications. It focuses primarily on diagnostics within the .NET ecosystem, so topics such as front-end application debugging or non-Windows platform-specific diagnostics are not covered.
What is the expected time commitment for completing this course?
The course consists of 51 lessons with additional homework assignments, and while the exact runtime isn't specified, a typical learner might expect to dedicate several weeks to complete it, depending on their pace. Given the technical depth, allocating regular study time and practicing the techniques on personal projects could enhance understanding and skill development.