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Re: Leaks question
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Re: Leaks question


  • Subject: Re: Leaks question
  • From: Rick Altherr <email@hidden>
  • Date: Mon, 10 Dec 2007 08:59:50 -0800


On Dec 9, 2007, at 12:21 PM, j o a r wrote:


On Dec 9, 2007, at 11:45 AM, Lorenzo Thurman wrote:

When using leaks, how do I determine exactly which object is being leaked? Leaks displays the function where the leak occurs, but is there a way to narrow things down to the object?


It also gives you the pointer to the object:

Leak: 0x1e72b0 size=48 instance of 'NSCFString', type ObjC, implemented in CoreFoundation

If that's not enough in itself, you would typically combine the output from leaks with using ObjectAlloc (or the Object Allocations instrument in Instruments) to find the exact memory management events sent to this object during its lifetime.

j o a r


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Or you can use Shark's Malloc Trace config to get a profile of leaked objects. It has a few more limitations in that it can only see leaks that happened during the session recorded, but the output shows which line of source cause the allocation of the leak.

--
Rick Altherr
Architecture and Performance Group
email@hidden


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  • Follow-Ups:
    • Re: Leaks question
      • From: "Sean McBride" <email@hidden>
    • Re: Leaks question
      • From: Lorenzo Thurman <email@hidden>
References: 
 >Leaks question (From: Lorenzo Thurman <email@hidden>)
 >Re: Leaks question (From: j o a r <email@hidden>)

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