swaitsandClaude Opus 4.6
777a37d4cd
Decode rewritten with shrinking-slice pattern (split_first/split_at) instead of index arithmetic. Decode zeros 14% faster, decode nonzero flips from 5% behind corncobs to 2% ahead, decode mixed closes to tied. Encode zeros fast path moved before split_at — now tied with cobs (was 6% behind). Code size reduced to 821B (was 869B). Replaced criterion with iai-callgrind for deterministic instruction-count benchmarks via Valgrind. Zero run-to-run variance. Expanded to 162 benchmarks across 9 sizes. ucobs now wins or ties 16 of 18 benchmarks vs corncobs and cobs. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
81 lines
2.2 KiB
Makefile
81 lines
2.2 KiB
Makefile
# μCOBS development tasks
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# default: list all recipes
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default:
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@just --list
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# run ALL quality gates (tests, clippy, fmt check, doc, fuzz, miri, mutants)
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test: test-unit test-clippy test-fmt test-doc test-fuzz test-miri test-mutants
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# quick compile check (no tests)
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check:
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cargo check
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# unit + integration + proptest tests (via nextest for parallelism)
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test-unit:
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cargo nextest run
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cargo test --doc
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# clippy with all warnings as errors
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test-clippy:
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cargo clippy -- -D warnings
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# check formatting
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test-fmt:
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cargo fmt -- --check
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# doc build (catches broken doc links)
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test-doc:
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cargo doc --no-deps
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# fuzz all targets (60s each, requires nightly + cargo-fuzz)
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test-fuzz:
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cd fuzz && cargo +nightly fuzz run fuzz_decode -- -max_total_time=60
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cd fuzz && cargo +nightly fuzz run fuzz_roundtrip -- -max_total_time=60
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cd fuzz && cargo +nightly fuzz run fuzz_small_dest -- -max_total_time=60
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# run tests under miri (catches UB, requires nightly + miri component)
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# proptest is excluded — its file-persistence layer calls getcwd which miri does not support
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test-miri:
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cargo +nightly miri test -- --skip proptests
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# mutation testing (requires cargo-mutants)
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test-mutants:
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cargo mutants --no-shuffle
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# run iai-callgrind benchmarks (deterministic instruction counts, requires valgrind)
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bench: bench-iai bench-size
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# run iai-callgrind benchmarks (ucobs vs cobs vs corncobs)
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bench-iai:
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cargo bench
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# measure compiled code size (encode + decode .text bytes)
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bench-size:
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@cargo build --release 2>/dev/null
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@echo ""
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@echo "Code size (release, encode + decode .text):"
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@nm -S target/release/libucobs.rlib 2>/dev/null \
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| grep 'T _ZN5ucobs' \
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| awk '{size=strtonum("0x"$2); name=$4; sub(/.*ucobs[0-9]*/, "", name); sub(/17h.*/, "", name); printf " ucobs %-7s %4d B\n", name, size}'
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# run python cobs benchmarks (requires: pip install cobs)
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bench-python:
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python3 bench_python.py
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# run all benchmarks (rust + python)
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bench-all: bench bench-python
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# format code
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fmt:
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cargo fmt
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# build in release mode
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build:
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cargo build --release
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# clean all build artifacts
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clean:
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cargo clean
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rm -rf fuzz/target fuzz/corpus fuzz/artifacts
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