Parallel write handling in Zarr

[asparsa]

I'm trying to get the best writing time from the zarr3 driver. I ran the mentioned code in #172 (comment) with different numbers of limits and different system configurations. Shockingly, it will stop improvement at 16, the number of cores in one NUMA. I tried the mentioned approaches to overcome this issue, but none worked. I wanted to scale my writing to more than one node and ask how this can be handled.

[laramiel]

.. I'm going to close this. Please move your comment back to the other issue.