CODEWITHSUNDEEP
objective-ciosxcodeinstruments
Sandeep
Sandeep

Reputation: 21144

Memory warning debugging in instruments

I am new to ios development. I am having a very serious issue now. My application is almost complete but it crashes very often due to memory warning. The memory warning is received whenever I present a new view controller on the top of the existing view controller. The custom view class adds UIWebView to its view when the new view controller is loaded.

I tried to debug the memory allocation with instruments but do not have any idea on how the memory is being allocated. The screenshot of the heapshot analysis shows bunch of non-objects as in the figure below and when I see the stack trace it points to adding the webview. enter image description here

Please suggest me how I have to debug. What does these non-objects point to and how should I deal with them. I thank you for your suggestion and help in advance.

Upvotes: 1

Views: 2478

Answers (1)

bbum
bbum

Reputation: 162712

Non-object allocations are almost always used as backing stores within objects. I.e. an NSMutableArray will often be backed by several malloc()'d buffers that show up in non-object allocations in instruments.

Unless the non-objects are the only thing showing up as allocations in Instruments, you can ignore them.

Instead, focus on allocations of a specific type. Anything else in that Heapshot iteration? Looks like there is a CardScrollView in that backtrace on the right. Are they going away correctly?

Upvotes: 2

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