Re: Losing memory
On Monday, 28 May 2012 at 03:20, Charlie Dickman wrote: My application is using (leaking) too much memory and eventually dies because no more can be allocated. I have used Instruments to measure the usage and leaks and have addressed those it told me about. Now, however, Instruments indicates that memory reaches a steady state (no more increases) yet the app continues to die for lack of memory. Does anyone know of a next step I can take to help track down this problem? One thing I always find helpful in situations like this is to use Instruments' Allocations template, then, ignoring the graph and byte counts, sort the Statistics view at the bottom by # Living and see if there's anything that seems to be allocated a surprising number of times. Often there are large numbers of small objects that are really just handles to other things - for example, objects holding on to memory-mapped files, or OpenGL textures. These objects don't contribute much to the Allocations count, because they themselves are very small. The things they're holding on to also don't contribute, because they're not 'allocated' in a way the instrument tracks, but they could be taking up a lot of your address space. Jamie. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Losing memory
On 27 May 2012, at 9:20 PM, Charlie Dickman wrote: My application is using (leaking) too much memory and eventually dies because no more can be allocated. I have used Instruments to measure the usage and leaks and have addressed those it told me about. Now, however, Instruments indicates that memory reaches a steady state (no more increases) yet the app continues to die for lack of memory. Does anyone know of a next step I can take to help track down this problem? How much memory does your allocation total plateau at? How do you know that it's exhaustion of memory that's getting you killed? I assume (you don't say) this is iOS, and that your problem is showing up on the device. What does the device's own log show? Is your app in the foreground or background at the time? Use the VM Tracker instrument and see if you're eating up memory in other zones. In my experience, your application heap (Allocations) can be stable, but if you accumulate Core Graphics/Core Animation buffers, you're in trouble pretty quickly. By default, VM Tracker snapshots the heaps only when triggered (Snapshot Now). It may be better if you check Automatic Snapshotting in the detail area for VM Tracker. — F ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Losing memory
My application is using (leaking) too much memory and eventually dies because no more can be allocated. I have used Instruments to measure the usage and leaks and have addressed those it told me about. Now, however, Instruments indicates that memory reaches a steady state (no more increases) yet the app continues to die for lack of memory. Does anyone know of a next step I can take to help track down this problem? Charlie Dickman 3tothe...@comcast.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
