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Core dataperformancetips

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Transcript

  • 1. TIPS FOR CORE DATA
  • 2. • Store big files (>1MB) externally • Store intermediate files (>=100kb < 1MB) in a relationship. • Store small files (<100kb) internally • Entity inheritance can be a performance hinderance • Search properties can be helpful • Follow object model • Separate commonly used data form the rest
  • 3. • Retrieve NSManagedObjectIDs and retrieve properties from that [fetchRequest setResultType:NSManagedObjectIDResultType]; • Retrieve only property values • Use batch sizes • Prefetch relationships • Perform fetches on background thread

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