dmbelov

I checkout `hdf5plugin` tag `v4.1.3` and compiled it with all optimizations upto `AVX2`. The python code below shows that Blosc2 is 2.8x slower than Blosc (I am running both compressors...

### Describe the issue: Consider a structured array `x_i` with several fields. We would like to sort it in a stable way over a given field, `key`. To this end...