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Windows Dev Performance's Issues

Welcome to the Windows Dev Performance Issues repo!

The purpose of this repo is to collect and catalog issues that affect / impact the inner loop of developers who work on Windows. The developer inner loop would include areas such as compile, run, build, test, debug, and commit. It doesn't matter if you're developing applications FOR Windows or applications that you plan to deploy on Linux, Android, IoT devices, servers, containers, or cloud - if you're building code ON Windows, we'd love to hear from you.

This repo is being driven and managed by a x-team, x-division group of PMs and engineers who're all passionate about improving developers' experience on Windows. We are already coordinating several streams of ongoing work with teams across the company and throughout the community, aiming to drive many issues to ground.

Scope of this repo

Please take note of the current scope of this repo:

In Scope

We are currently only accepting specific types of issues - those impacting the developer inner loop:

  • compile
  • run
  • build
  • test
  • debug
  • commit

Example issues include:

  • Dev tools (e.g. compilers, linkers, etc.) running slower on Windows than expected
  • Runtime platforms (e.g. node, .NET, Python) running slower on Windows than other platforms
  • Your apps experiencing file IO/networking/process-creation related perf issues
  • Etc.

Out of scope

If you have feedback/issues related to the following technologies, please file issues in their repos where the teams that own those technologies will be best able to help:

Tech Repo
Windows Terminal / Console / command-line https://github.com/microsoft/terminal
Windows Subsystem for Linux (WSL) https://github.com/microsoft/wsl
PowerShell https://github.com/powershell/powershell
PSReadLine - PowerShell's interactive command extensions https://github.com/PowerShell/PSReadLine
OpenSSH for Windows https://github.com/powershell/Win32-OpenSSH
.NET Core runtime & libraries https://github.com/dotnet/runtime
ASP.NET Core https://github.com/dotnet/aspnetcore
Roslyn (C# & Visual BASIC Compiler Platform) https://github.com/dotnet/roslyn
Windows Presentation Foundation (WPF) https://github.com/dotnet/wpf
WinForms https://github.com/dotnet/winforms
WinUI https://github.com/Microsoft/microsoft-ui-xaml
Winget package manager app https://github.com/microsoft/winget-cli
Winget package repo https://github.com/microsoft/winget-pkgs
PowerToys https://github.com/microsoft/powertoys
Project Reunion https://github.com/microsoft/ProjectReunion

Submit all other issues via Feedback Hub

If you have other out-of-scope feedback that you'd like to report/share, please submit via Windows' 10's Feedback Hub which will route your feedback to the team that owns the technology you're experiencing issues with.

👉 Feedback Hub offers several very useful features that help us track-down complex issues, including the ability to record scenario-specific repro steps and traces. We may on occasion ask you to file an issue via Feedback Hub in order to collect these traces.

How to File an Issue

File an issue.


Traces are required for filing an issue. You can collect traces by using The Feedback Hub, or throught the Windows Performance Recorder. If using the Feedback Hub, include a link to the submission in your issue.


We're not accepting PR's right now (currently, this is an issues-only repo), but if/when we do ...

Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.opensource.microsoft.com.

When you submit a pull request, a CLA bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., status check, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.

Code of Conduct

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.


A repo for developers on Windows to file issues that impede their productivity, efficiency, and efficacy



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