xoofx/ultra
Some data may be outdated — see provenance labels.
An advanced profiler for .NET Applications on Windows and macOS observed · 2026-10-04
Health v2 · maintenance only
79/100
- Activity 86
- Release rhythm 87
- Longevity 50
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 1.0
- age_days: 701
- days_rel: 84
- days_push: 84
- n_releases_24m: 15
Adoption not part of the score
1195 stars · 24 forks observed · 2026-10-04
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Ultra is an advanced sampling profiler for .NET applications on Windows (ETW-based) and macOS Apple Silicon (EventPipe-based). It produces lightweight traces viewable in the Firefox Profiler UI with timeline, flamegraph, call tree, and GC/JIT event visualizations.
Use cases
- profile a .NET application's CPU usage
- find performance bottlenecks in dotnet code
- generate flamegraphs for .NET apps
- analyze GC allocation and JIT compile events
- capture native and managed call stacks on Windows
- profile a running .NET process by PID
When to choose
- you need a lightweight sampling profiler for .NET on Windows or macOS ARM64
- you want Firefox Profiler-compatible traces that are shareable online
- you need kernel, native, and managed stack traces in one tool
When to avoid
- you need a profiler for non-.NET languages
- you cannot run from an elevated prompt on Windows
- you need memory heap snapshots or allocation tracking beyond GC events
Facets
cli-tool · maturity active
monitoring benchmarking developer-tools developer-tools performance windows cli dotnet profiler sampling-profiler etw eventpipe flamegraph dotnet performance-analysis command-line macos
1 source
- readme: https://github.com/xoofx/ultra · fetched 2026-10-04 · 327f8d3f9015
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| xoofx/ultra | main | 79 |
For agents
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem