mstange/samply

Some data may be outdated — see provenance labels.

Command-line sampling profiler for macOS, Linux, and Windows observed · 2026-09-22

github.com/mstange/samply · Rust · Apache-2.0 (permissive) observed · 2026-09-22

Health v2 · maintenance only

66/100

Activity 96
Release rhythm 8
Longevity 100

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: n/a
age_days: 2339
days_rel: 626
days_push: 29
n_releases_24m: 1

Full methodology

Adoption not part of the score

4426 stars · 104 forks observed · 2026-09-22

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

Samply is a command-line sampling CPU profiler for macOS, Linux, and Windows that records profiles of arbitrary commands and displays them in the Firefox profiler UI. It collects per-thread stack traces at high frequency (default 1000Hz) and serves symbol and source information via a local webserver.

Use cases

profile a command-line application's CPU usage
generate flame graphs for a program
find which functions consume the most time in my code
sample stack traces per thread at 1000Hz
view a CPU profile in the Firefox profiler
profile off-cpu time waiting on locks on macOS or Windows
record a shareable performance profile of a build tool

When to choose

you want a zero-config CLI profiler that works across macOS, Linux, and Windows
you prefer the Firefox profiler UI with flame graphs, timelines, and source views
you need high-frequency sampling with per-thread stack traces
you want profiles kept local with optional sharing via upload

When to avoid

you need continuous production monitoring or always-on profiling
you need off-CPU analysis on Linux, which samply does not yet support
you prefer integrated IDE profilers or tools like perf's own reporting UI

Facets

cli-tool · maturity active

benchmarking monitoring cli developer-tools developer-tools performance windows cli rust cpu-profiler sampling-profiler flame-graph firefox-profiler profiling command-line macos linux

2 sources

readme: https://github.com/mstange/samply · fetched 2026-09-22 · 5895616f4fb3
registry_crates: https://crates.io/api/v1/crates/samply · fetched 2026-08-29 · 20e8116d5488

Member repositories

Repository	Role	Health v2
mstange/samply	main	66

For agents

markdown · JSON · MCP: product_card(name="mstange/samply")

Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem