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Re: Core Data Fetch request very poor performance ??!
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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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 >Re: Core Data Fetch request very poor performance ??! (From: Chris Hanson <email@hidden>)

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