Mailing Lists: Apple Mailing Lists

Image of Mac OS face in stamp
 
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: CoreData Best Practices



On Apr 29, 2005, at 4:13 PM, John Timmer wrote:

I did say that I'm not sure where that would come down on the
performance/memory use equation, though. I haven't done a multi- way search
on a managed object context with > 10000 objects yet. Anyone know how quick
that is?



For XML and Binary, the search will be performed in memory and should be very quick, depending on the details of the predicate.


However, you can very likely gain a significant performance boost by using a SQL store in that the query will be optimized down to a SQL select statement and evaluated within the SQLite engine, which is quite nicely optimized, itself.

We regularly tested and optimized Core Data against data sets in the hundreds of thousands and millions of entities range.

If you do find a performance issue, please file a bug.

b.bum


_______________________________________________ Do not post admin requests to the list. They will be ignored. Cocoa-dev mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/email@hidden

This email sent to email@hidden
References: 
 >Re: CoreData Best Practices (From: John Timmer <email@hidden>)



Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2007 Apple Inc. All rights reserved.