# jonhoo/inferno

A Rust port of FlameGraph

Repository: https://github.com/jonhoo/inferno
Canonical: https://ross.abutalabs.com/products/jonhoo-inferno
Language: Rust
License: NOASSERTION
License Family: other
Last push: 2026-07-18T18:08:21+00:00

## Health v2 (maintenance only)
Score: 74/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 93, release rhythm 35, longevity 100
- inputs: {"age_days": 2776, "days_push": 46, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2163, forks 157 (observed 2026-08-28T04:06:21.179559+00:00)

## What it is
Inferno is a Rust port of the FlameGraph profiling toolkit, providing fast stackcollapse tools and a flamegraph SVG generator. It can be used as CLI binaries or as a Rust library for integration into other tools like cargo-flamegraph.

## Use cases
- generate flame graphs from perf output
- collapse dtrace profiling stacks quickly
- visualize cpu profiling data as svg
- integrate flamegraph generation into rust tooling
- speed up stackcollapse-perf processing

## When to choose
- you need faster flamegraph generation than the perl original
- you want a library API for flamegraph rendering in Rust
- you profile with perf or dtrace on Linux/macOS

## When to avoid
- you need profilers for platforms or formats not yet supported
- you want an all-in-one profiling GUI

## Facets
- artifact type: cli-tool
- maturity: active
- function: parser, data-visualization, cli, developer-tools
- domain: developer-tools, performance
- platform: cli, cross-platform
- tags: flamegraph, profiling, perf, dtrace, rust, command-line, linux, macos

## Member repositories
- jonhoo/inferno (main) score 74

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:21.179559+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:50:12.143712+00:00, confidence not recorded.
  - readme: https://github.com/jonhoo/inferno (fetched 2026-08-28T04:06:21.179559+00:00, sha 29ec2e0a80ac)
  - registry_crates: https://crates.io/api/v1/crates/inferno (fetched 2026-08-29T10:29:51.827731+00:00, sha 5ac949ed861e)
- Data as of 2026-08-30T08:39:29.467469+00:00.