Zarr compression settings for local intermediate files

[tomwhite]

When running some benchmarks recently I noticed that turning off Zarr compression resulted in faster IO performance when writing random data to Zarr files on a local SSD. This post seems to confirm that.

So perhaps we should turn off compression for intermediate Zarr data stored on the local filesystem.

[TomNicholas]

This seems related and interesting: https://github.com/royerlab/czpeedy