osobhandClaude Opus 5.5
bf4aefcd00
Review follow-ups. With run_with_helpers a one-thread rayon pool gave each read a second core (the caller plus the worker), so --decode-threads 1 no longer matched h5py's one core per call; such a pool now adds no helper. Per-thread decode scratch is kept up to 1 MiB per buffer (was 4 MiB), bounding what never-exiting pool workers hold. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
clawhdf5-format
Pure-Rust HDF5 binary format parsing and writing — no C dependencies.
Features
- Zero-copy superblock, object header, and B-tree parsing
- Chunked dataset read/write with filter pipelines
no_stdsupport (disablestdfeature)- Optional parallel reads via Rayon
- SHA-256 provenance tracking
Usage
use clawhdf5_format::Superblock;
let data = std::fs::read("data.h5").unwrap();
let sb = Superblock::from_bytes(&data).unwrap();
println!("HDF5 version {}.{}", sb.version_major(), sb.version_minor());
License
MIT