Hello,
I'm working on a Core Data application that does lots of processing of
the data in background threads to generate reports. I'd like to
investigate using multiple persistent store coordinators to reduce
lock contention, i.e. pattern #2, as described in the multi-threaded
chapter of the Core Data guide.
I'm thinking it is a good fit in this case as the background threads
are doing mainly read-only operations on the data. It does modify
transient properties, but I think I can still get away with using a
read-only store on the background threads. Is this correct?
The documentation is a little thin about using multiple PSCs. Is it
just a matter of setting up separate Core Data stacks per thread?
What are the downsides, especially compared to 1 PSC/multiple MOCs?
Higher memory usage? Separate caches? Stale data? Anything else to
watch out for?
Thanks,
-Dave
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