uber-archive/pyflame

Health v2 · maintenance only

Flags: no_releases archived

Adoption not part of the score

2982 stars · 240 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Pyflame is a high-performance sampling profiler for Python implemented in C++ that uses Linux ptrace to capture call stacks without instrumentation, producing flame graph data. It can attach to running processes (including embedded interpreters like uWSGI) with low overhead, but the project is deprecated and unmaintained.

Use cases

• profile a running python process in production
• generate flame graphs for python code
• profile python program without modifying source code
• profile uwsgi embedded python interpreter
• profile multithreaded python application
• find cpu hotspots in python service

When to choose

• you need to attach to an already-running Python process on Linux without instrumentation
• you need low-overhead production profiling with flame graph output
• you're profiling embedded interpreters like uWSGI on an older Python stack

When to avoid

• you're on macOS or Windows - it relies on Linux ptrace
• you want a maintained tool with support for modern Python versions
• you need memory profiling rather than CPU/call-stack sampling

Facets

cli-tool · maturity abandoned

benchmarking monitoring developer-tools developer-tools performance cpp python cli profiler flame-graphs ptrace sampling-profiler python-profiling deprecated command-line linux docker

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markdown · JSON · MCP: product_card(name="uber-archive/pyflame")