newpfd

Crates.ionewpfd
lib.rsnewpfd
version0.8.0
sourcesrc
created_at2023-07-20 16:04:48.159115
updated_at2024-06-24 00:40:45.077488
descriptionNewPFD integer compression/decompression
homepagehttps://github.com/redst4r/newpfd-rs
repositoryhttps://github.com/redst4r/newpfd-rs
max_upload_size
id921432
size80,980
(redst4r)

documentation

README

NewPFD-rs

Rust library implementing the NewPFD integer compression/decompression algorithm.

Performance

It's currently lacking optimization for speed, but it's decently fast. We perform this on geometrically distributed integers (Geo(lambda=0.01)) to force encoding exceptions in the NewPFD-block.

  • Encoding: 90ms/ 1M integers
  • Decoding: 16ms/ 1M integers

See benchmarks for details.

Examples

For more examples, see the rust-docs.

// Encode some data using NewPFD
use newpfd::newpfd_bitvec::{encode, decode};
let data = vec![10_u64,12,10,1,1,2,3];
let blocksize = 32; // needs to be a mutliple of 32

// encode
let (compressed_data, _) = encode(data.iter().cloned(), blocksize);
// compressed_data is a `bitvec::BitVec` (similar to a Vec<bool>)

// decode
let (decompressed_data, bits_processed) = decode(&compressed_data, data.len(), blocksize);
assert_eq!(data, decompressed_data);
assert_eq!(compressed_data.len(), bits_processed); // the entire bitstream was consumed
Commit count: 46

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