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Editorial Team
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Asked: 2026-05-27T05:10:33+00:00

What I want in short is: Core Data that runs without blocking the main

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What I want in short is:

  • Core Data that runs without blocking the main thread
  • entities with relationships
  • bindings in InterfaceBuilder

I have tried ‘everything’, but it turned out that there are too many difficulties with Core Data on two or more threads and two NSManagedObjectContexts and bindings and entities with relationships and so on. These threads can make CoreData very complicated.

Nevertheless I want to use Core Data and I want it to run in the background for good UI response.

So I wonder, is it possible to completely run everything related to Core Data in one separate thread, which is not the main thread?

I will send everyone 50 bucks, if I finally find a solution that works…

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1 Answer

  1. Editorial Team

    I used two NSManagedObjectContext instances to push some longer lasting data tasks onto another thread with Grand Central Dispatch.

    As long as you be careful to merge this context with the one on the main thread used to fetch data then you should be able to get some performance that way.

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