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znippy-decompress-0.2.5
znippy
A parallel, random-access archive: pack a directory at all-core speed, pull any single file back without unpacking the rest — and query the index in DuckDB / Polars / DataFusion, because it's just Arrow IPC.
Mashup — one archive vs tar/zip/7z/parquet
znippy is the only archive that's all-core on both ends, random-access per file, and directly queryable — without pretending to beat zstd/7z on raw ratio:
| capability | znippy | tar + zstd | zip | 7z | parquet |
|---|---|---|---|---|---|
| All-core compress | ✅ | ~ (-T0) |
◐ | ✗ | ✅ |
| All-core decompress | ✅ | ✗ serial | ✗ | ✗ | ✅ |
| Random single-file read | ✅ | ✗ | ✅ | ✗ (solid) | — (columnar) |
| Query without the tool (DuckDB / Polars) | ✅ | ✗ | ✗ | ✗ | ✅ |
| Best pure ratio | ◐ | ✅ (-19) |
✗ | ✅ | — |
The full capability matrix and every measured per-backend throughput table (JAR / ZIP / gzip / bzip2 decode vs the legacy C tools) are in the full overview.
Read the real docs
- 📖 The complete manual —
docs/book.pdf— every subsystem chapter (format, Gatling pipeline, random-access, Iceberg/seal, decompressors). - 📄 Full overview —
.nornir/README-full.md— the detailed pitch, quickstart, what's-new, the full competitive matrix, and all measured benchmarks. - 📝
docs/book.md— the manual, as Markdown.