TIPS FOR CORE DATA

• 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

• Retrieve NSManagedObjectIDs and retrieve properties from that [fetchRequest setResultType:NSManagedObjectIDResultType];

• Retrieve only property values

• Use batch sizes

• Prefetch relationships

• Perform fetches on background thread