Re: CoreData performance issues
Re: CoreData performance issues
- Subject: Re: CoreData performance issues
- From: mmalcolm crawford <email@hidden>
- Date: Tue, 21 Jun 2005 17:22:55 -0700
On Jun 21, 2005, at 5:10 PM, Tomek Piatek wrote:
For example, when ingesting a new scene we want to create a new
project object only if one with the given name doesn't already exist.
We found that processing 20,000 records using this "find-or-create"
approach is so slow that it makes CoreData basically useless.
This sounds "unusual". How are you determining uniqueness?
Are you doing any additional processing?
How long does it take simply to read and parse the data, without
creating any managed objects?
How much memory is your application using? Is the hard drive
thrashing? Is all the processing being done in a single "event loop"
-- is there just one autorelease pool for the entire process...?
mmalc
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Cocoa-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden