Increases the use of the system RAM until it reaches RAM saturation

I see that you mention H5garbage_collect. I have had similar symptoms than the OP and reported in

but I never got an answer about how the garbage collection works. Could elaborate on that please? e.g. When do we have to call it? What is collected?

In the meantime, I’ll try to monitor the free list sizes with H5get_free_list_sizes().

Thanks,
Samuel