Francesc Alted - Btune: Making Compression Better | PyData Global 2023
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Data compression is not a one-codec-fits-all problem. It necessarily involves a trade-off between compression ratio and speed. A higher compression ratio usually results in a slower compression process. Depending on the needs, one may want to prioritize one over the other. The issue is that finding the optimal compression parameters can be a slow process due to the large number of combinations of compression parameters (codec, compression level, filter, split mode, number of threads, etc.), and it may require a significant amount of manual trial and error to find the best combinations.
Btune (https://btune.blosc.org) is a dynamic plugin for Blosc2 that can help finding the optimal combination of compression parameters for datasets compressed with Blosc2 (https://github.com/Blosc/c-blosc2, https://github.com/Blosc/python-blosc2), while significantly speeding up this process.
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