beamperf

Scope note: beamperf covers Elixir and Erlang under one BEAM kit. Lint scans .ex / .exs / .erl. Prefer Elixir CLI; Erlang patterns are recognized in the same pass. Distinct from JVM kits.

Elixir + Erlang (BEAM) performance notes, small examples, and beamperf-lint.

Part of XPerf. Shared docs: docs/README.md. Corpus-ready. be-list-concat-reduce, be-map-merge-hot and be-enum-map-filter-chain hint; be-io-puts-hot off. One rule removed (tombstone, never got a slug). No G4. Guide v0.

ContentsCopy Anchor Link

• English guide (v0) — from docs/guide-src/
• beamperf-lint — four rules (see its table for defaults)
• Corpus pins

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Avoid list ++ and string/<> growth in loops (prefer cons + reverse or iolist), keep IO.puts / io:format out of hot loops.

Run lintCopy Anchor Link

elixir packages/beamperf/beamperf-lint/beamperf_lint.exs path/to/sources
bash packages/beamperf/scripts/smoke-lint.sh
bash packages/beamperf/scripts/self-lint.sh

Exit 1 only for error-severity findings (hints exit 0 unless --strict-hints).

LayoutCopy Anchor Link

docs/guide-src/   chapter sources
docs/             assembled guide + corpus.md + evidence-policy.md
evidence/         per-rule measured evidence (*.md + *.jsonl) and _removed/ tombstones
examples/         tiny demos
beamperf-lint/    checker + fixtures
scripts/          smoke-lint.sh, self-lint.sh