c-blosc | A blocking , shuffling and loss-less compression library | Compression library

c-blosc is a C library typically used in Utilities, Compression applications. c-blosc has no bugs, it has no vulnerabilities and it has medium support. However c-blosc has a Non-SPDX License. You can download it from GitHub.

Blosc is a high performance compressor optimized for binary data. It has been designed to transmit data to the processor cache faster than the traditional, non-compressed, direct memory fetch approach via a memcpy() OS call. Blosc is the first compressor (that I'm aware of) that is meant not only to reduce the size of large datasets on-disk or in-memory, but also to accelerate memory-bound computations. It uses the blocking technique so as to reduce activity in the memory bus as much as possible. In short, this technique works by dividing datasets in blocks that are small enough to fit in caches of modern processors and perform compression / decompression there. It also leverages, if available, SIMD instructions (SSE2, AVX2) and multi-threading capabilities of CPUs, in order to accelerate the compression / decompression process to a maximum. See some benchmarks about Blosc performance. Blosc is distributed using the BSD license, see LICENSES/BLOSC.txt for details.