On Sep 9, 2008, at 6:48 PM, Markus Spoettl wrote:
What I don't understand is why adding the auto-release pool has such
a dramatic impact on registering observers on the objects. Anyone
know why?
It would simply be that the methods triggered by KVC/KVO (the
observations) are creating a huge amount of objects. Uncomment the
pool and watch your memory usage in Activity Monitor. It'll probably
be grabbing all available memory and paging out like crazy, which is
what's causing it to be so slow.
Surely adding 330 items to an array shouldn't take a minute on any
machine from this century. I think your code is doing something you're
not realizing. You could:
a) have a method that on each observation explicitly creates a
bajillion objects
b) have a bajillion observers that each create a bunch of objects
c) have enough observers and have enough oddly placed observations and
method calls that you literally end up calling the same methods over
many many times because it recurses unintentionally, for each object
added to the array.
Use Instruments to figure out what objects are being created, from
where, and examine your logic to see if they're actually supposed to
be created.
*shrugs*
Hope that helps :)
--
Seth Willits
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