Make lookup tables shared between threads #703
Description
If threads are use in a Flux , resulting in parallel Fixes, all lookup tables are loaded per instance of Fix. As these tables are read-only we could make them shared by all thread.
Impact: less memory consumption (depending on the number of thread involved)
Afaik only one project is using threads in a Flux (namely https://github.com/hbz/lobid-resources) using 8 threads. Memory consumption is now ~ 22GB and would shrink to around 5GB.