On 26 Apr 2012, at 20:37, Marco Tabini wrote:

> I wonder if someone could point me to the right way to profile 
> poorly-performing custom-drawn UITableView cells. I've come across this 
> problem several times, and usually manage to figure out how to solve it, but 
> my process is not very scientific—there's far too much trial and error 
> involved, and I wonder whether there isn't a known way to pinpoint exactly 
> which part of the code causes a table to stutter using Instruments. I've 
> tried Googling for the problem, but it seems to me that the vast majority of 
> people giving suggestions are focusing on known techniques to make table 
> cells perform, rather than trying to understand where an already-implemented 
> table is going astray.

If you haven't done it already, the first thing to try is running  your app 
through the Time Profiler.

Mikkel


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