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Re: Using Instruments to profile UITableView drawing
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Re: Using Instruments to profile UITableView drawing


  • Subject: Re: Using Instruments to profile UITableView drawing
  • From: Tito Ciuro <email@hidden>
  • Date: Thu, 26 Apr 2012 12:07:13 -0700

Hello,

I would also profile it with the Core Animation instrument. Make sure you select the "Color Blended Layers" checkbox in the Debug Options area. This will apply a colored overlay to each view (green is opaque and red is transparent.)

-- Tito

On Apr 26, 2012, at 11:59 AM, Mikkel Islay wrote:

>
> 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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References: 
 >Using Instruments to profile UITableView drawing (From: Marco Tabini <email@hidden>)
 >Re: Using Instruments to profile UITableView drawing (From: Mikkel Islay <email@hidden>)

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