dotnet/diagnostics
Mar 2025 – Mar 2026
2 Months active
Languages Used
C#
Technical Skills
Command-line Interface (CLI)Debugging ToolsProcess ManagementC#backend developmentunit testing
Zach Madsen
PROFILE
Zach Madsen
Zach Madsen developed advanced diagnostic and profiling features for the dotnet/diagnostics and microsoft/perfview repositories, focusing on backend development and system monitoring using C#. He delivered a diagnostic port option for dotnet-dump, enabling live process attachment and improving runtime observability. In PerfView, he implemented a command-line flag to cap OS heap profiling file sizes, enhancing resource control and profiling reliability. Zach also engineered robust redirected console I/O handling for Linux tracing workflows, addressing runtime exceptions and aligning tracing tool behavior. His work demonstrated depth in command-line interface design, argument parsing, and unit testing, consistently targeting reliability and maintainability in .NET diagnostics.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
3Total
Bugs
0
Commits
3
Features
3
Lines of code
142
Activity Months3
Your Network
49 peopleWork History
March 2026
1 Commits • 1 Features
Mar 1, 2026March 2026 performance summary: Implemented Redirected Console I/O Handling for Tracing in dotnet/diagnostics, delivering robust support for redirected input/output on Linux. This feature stabilizes tracing workflows (dotnet-trace collect) when console I/O is redirected, aligns with existing tracing patterns, and reduces runtime exceptions, delivering business value through higher reliability and improved developer productivity.
1 Commits • 1 Features
Mar 1, 2026March 2026 performance summary: Implemented Redirected Console I/O Handling for Tracing in dotnet/diagnostics, delivering robust support for redirected input/output on Linux. This feature stabilizes tracing workflows (dotnet-trace collect) when console I/O is redirected, aligns with existing tracing patterns, and reduces runtime exceptions, delivering business value through higher reliability and improved developer productivity.
March 2026
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for microsoft/perfview. Focused on delivering a configurable OS heap profiling cap to improve resource control and profiling reliability across sessions.
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for microsoft/perfview. Focused on delivering a configurable OS heap profiling cap to improve resource control and profiling reliability across sessions.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025: Delivered a new diagnostic port feature for dotnet-dump enabling attaching to running processes via a specified diagnostic port, with changes in Dumper.cs and Program.cs and repository visibility updated to internal-visible-to. This enables faster live-debugging and reduces incident response time, strengthening runtime observability and troubleshooting capabilities for .NET applications. No major bugs fixed this month; efforts focused on feature delivery, code visibility, and reliability.
1 Commits • 1 Features
Mar 1, 2025March 2025: Delivered a new diagnostic port feature for dotnet-dump enabling attaching to running processes via a specified diagnostic port, with changes in Dumper.cs and Program.cs and repository visibility updated to internal-visible-to. This enables faster live-debugging and reduces incident response time, strengthening runtime observability and troubleshooting capabilities for .NET applications. No major bugs fixed this month; efforts focused on feature delivery, code visibility, and reliability.
March 2025
Activity
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Quality Metrics
Correctness93.4%
Maintainability86.6%
Architecture86.6%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C#
Technical Skills
C#Command-line Interface (CLI)Command-line argument parsingDebugging ToolsPerformance profilingProcess ManagementSystem monitoringbackend developmentunit testing
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
microsoft/perfview
Apr 2025 – Apr 2025
1 Month active
Languages Used
C#
Technical Skills
Command-line argument parsingPerformance profilingSystem monitoring