namhyung/uftrace

Health v2 · maintenance only

Adoption not part of the score

3460 stars · 547 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

uftrace is a function call graph tracer for C, C++, Rust, and Python programs that records function entry/exit with timestamps, arguments, and return values. It supports dynamic patching without recompilation, kernel tracing via ftrace, and visualization through Chrome trace viewer, flame graphs, and call-graph diagrams.

Use cases

• trace function call graph of a C/C++ program
• profile program execution to find slow functions
• trace function arguments and return values
• trace program without recompiling it
• visualize execution flow as flame graph or call graph
• trace both user and kernel functions in one timeline
• write custom analysis scripts for function entry/exit

When to choose

• you need function-level execution tracing on Linux for C/C++/Rust/Python
• you want to see arguments and return values of traced functions
• you need combined user-space and kernel function tracing
• you want to analyze performance with duration filters and reports

When to avoid

• you need tracing on non-Linux platforms like Windows or macOS
• you need heap or memory profiling rather than function tracing
• you need a sampling-based statistical profiler with very low overhead

Facets

cli-tool · maturity active

tracing benchmarking monitoring developer-tools developer-tools performance cli cpp rust python function-graph-tracer ftrace dynamic-instrumentation flame-graph call-graph profiling command-line debugging linux

Member repositories

For agents

markdown · JSON · MCP: product_card(name="namhyung/uftrace")