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iOS Impossible Memory Use

September 29, 2016 - 4:15am #1

Vuforia SDK Version: 6.0.117 -

Description with steps to reproduce: Using latest Vuforia 6.0.117 and Unity 5.4.1p3

Simple scene with one ImageTarget build on iOS with Xcode 8 leads to amazingly high use of memory on devices.
After installation of the app memory peaks suddenly to over 250mB, drops to around 130mB and once target is scanned and simple sphere is shown memory is constantly going up which after a while causes app crash due to memory use.

On older devices (iPAd Mini 1) app is crashing without even loading the scene. -

Development OS (Mac OS X, Windows, Linux): Mac OS -

Mobile OS and Version: All -

Mobile Device Manufacturer and Model name: iOS devices -

Do the Vuforia Sample Applications show the same behavior?: Yes

HarmonyDev
Joined:
January 23, 2015
Posts: 5
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iOS Impossible Memory Use

October 4, 2016 - 2:19am #7

We have discovered some memory issues as well. As far as we are aware however it seems to be related to how many videos and trackables that you have in a project. We have mainly tested in iOS 9. It seems like it want to load them in, but after a while the memory usage goes up to 130% and then the videos we are using shows up with the X error symbol. Also it feels kinda random which videos that crashes. It can be 2 ones, I recreate those in Unity, then 2 others stop to work. Why is this? This is using Vuforia 6 and Unity 5.3

 

We also believe that its similar on Android, but as those devices seems to handle it differently it rather freezes and the whole app crashes after played ~20 videos. It feels like its hard to say who is the real thief in the memory drama.

IntermediaSolutions
Joined:
July 27, 2016
Posts: 53
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iOS Impossible Memory Use

October 4, 2016 - 1:27am #6

Which Unity version you are using? 

Are you tracking the image constantly and moving around it?

I have submitted the bug report to Unity team, they are able to replicate the issues and now it has been sent to their resolution centre.

This looks like Unity and Vuforia problem, not iOS 10, as iPad Mini 1 runs on OS 9.3.5.

HarmonyDev
Joined:
January 23, 2015
Posts: 5
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iOS Impossible Memory Use

October 3, 2016 - 7:12pm #5

All of the crashes we've seen, and get reports of, are from iOS 10. And because Apple is so forceful about upgrading...already a large portion of the market is using it...iOS 9 is now a minority. See here: https://mixpanel.com/trends/#report/ios_10/

 

 

 

 

mrduncan
Joined:
February 5, 2014
Posts: 33
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iOS Impossible Memory Use

October 3, 2016 - 3:45pm #4

Our tests on an iPad Mini (1st gen) with iOS 9.3.4 and compiled from Xcode 8 show 50MB of usage with normal tracking in ImageTargets and 70MB with Extended Tracking.

dm3d
Joined:
March 26, 2013
Posts: 2331
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iOS Impossible Memory Use

October 3, 2016 - 1:15am #3

We are seeing lots of iOS memory crashes lately, too. 

mrduncan
Joined:
February 5, 2014
Posts: 33
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iOS Impossible Memory Use

September 29, 2016 - 5:23am #2

Same here, this definitely need attention ASAP

lukos86
Joined:
January 22, 2013
Posts: 3
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