Re: Core Data Fetch request very poor performance ??!
Re: Core Data Fetch request very poor performance ??!
- Subject: Re: Core Data Fetch request very poor performance ??!
- From: Ruslan Zasukhin <email@hidden>
- Date: Tue, 29 Nov 2005 15:32:35 +0200
- Thread-topic: Core Data Fetch request very poor performance ??!
On 11/29/05 9:56 AM, "Chris Hanson" <email@hidden> wrote:
Hi Aurélien,
Hi Chris,
>> can anyone point me on any direction to improve performance ? or is
>> SQLite a very poor choice from apple ?
>
> SQLite can perform quite nicely in situations with a great many
> objects and well over 15MB of data. There's nothing obviously amiss
> in the code that you've shown. Is your code multithreaded, with
> something else manipulating the same persistent store at the same
> time? What does your data model look like in more detail? And
> finally, what version of Mac OS X are you using?
Aurélien,
SQlLite is really "LITE".
So nobody should expect miracles from it.
We have good news for Cocoa developers!
Justin Drury have provide a lots of help to Paradigma SoftWare to force
poring of Valentina Database to Cocoa.
Justin already 2 weeks use Valentina, and he have very impressive results.
I hope that Justin will post few comments to this list. Justin?
In any case you can read Justin comment right here:
http://paradigmasoft.com/en/testimonials (third from top)
Why this is good news for Cocoa developers?
Because Valentina is tens and hundreds times of faster than SQlLite.
I think in about of week, we will ship public beta of Valentina for Cocoa.
We have many questions to Cocoa developers and may be Apple.
For example I have see that CoreData support M : M links.
Valentina 2 introduce revolutionary feature in its Object-Relational model.
This is Links. Valentina 2 have Tables *and* Links. You can use 3 kind of
links for now:
- Foreign Key
- ObjectPtr
- Binary Link.
Binary Link support M : M link between tables. So it is very interesting to
see how it is possible plug this feature into Core Data model. They both
looks to be born to be married.
--
Best regards,
Ruslan Zasukhin
VP Engineering and New Technology
Paradigma Software, Inc
Valentina - Joining Worlds of Information
http://www.paradigmasoft.com
[I feel the need: the need for speed]
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