Cocoa mail archive
Re: Core Data performance advice... creating relationships.
FROM : Scott Ellsworth
DATE : Mon Jan 14 22:56:32 2008
On Jan 14, 2008 1:43 PM, Martin Linklater <<email_removed>> wrote:
> This technique has been working OK for smaller data sets but now that
> I am linking two very large tables together I am seeing terrible
> performance - My code is only creating around 20 relationships per
> second on my new Macbook Pro.
I would start with Shark/Instrument to see where your time is going,
then optimize.
One thought: how often are you calling save? If you save after every
transaction, I can see your performance going through the floor.
DATE : Mon Jan 14 22:56:32 2008
On Jan 14, 2008 1:43 PM, Martin Linklater <<email_removed>> wrote:
> This technique has been working OK for smaller data sets but now that
> I am linking two very large tables together I am seeing terrible
> performance - My code is only creating around 20 relationships per
> second on my new Macbook Pro.
I would start with Shark/Instrument to see where your time is going,
then optimize.
One thought: how often are you calling save? If you save after every
transaction, I can see your performance going through the floor.
