IL2CPP Memory Issue

Unity Engine
,
1

So i have been been experiencing crashes from running out of memory but when i profile our app in the editor or by attaching the profiler to the device while it is running my app is often using up well below the 1gb of ram on out target device (IPadAir).
If i build the App using the old mono-develop however, all the memory crashes disappear and my app becomes stable.

Xcode memory profiler running IL2CPP build of target app

2226280--148285--Screen Shot 2015-07-28 at 4.22.03 pm.png
2226280--148285--Screen Shot 2015-07-28 at 4.22.03 pm.png1003×240 42.1 KB
(flags on the left are memory warnings right before a crash)

Xcode memory profiler running Mono build of target app in the same scene

2226280--148286--Screen Shot 2015-07-28 at 4.39.13 pm.png
2226280--148286--Screen Shot 2015-07-28 at 4.39.13 pm.png998×242 40.3 KB

(notice the lack of memory warnings)

Has anyone else had memory issues with IL2CPP?
is there any fixes possible?
Does anyone know why my mono build is not crashing like the IL2CPP build?

Im willing to send my project to any unity devs for testing but it is a little on the big side (around a gig and a half).

2

We are currently seeing an influx of memory usage related bugs. Figuring this out is a high priority for us right now, but have not determined the cause yet.

3

Thanks for your reply and if there is anything i can do to get this resolved quicker please let me know as this bug is holding up a project my company is heavily invested in.

4

@jack-riddell

Please submit a bug report and include your project. If it is too large to upload via the bug reporter, we can obtain it in another way (like Dropbox or a blind FTP). Please reply here with the bug report number, and we will have a look at it.

5

My company is in the technological backwater of Australia where the top internet upload speed is 0.7 Mbps. the upload time for my project will be around the 5 - 6 hour mark provided there are no interruptions which makes ftp and unity bug reporter unreliable / inconvenient, I am setting up a temp drop box for the project and i will post the details/download link/bug report after the uploading has finished

6

@jack-riddell

Thanks, please let me know when the project is ready and the bug report is submitted.

7

I have the project along with 2 builds (mono and il2cpp) ready for xcode compilation uploaded to Drop box, how do you want me to give them to you? obviously i cant add the link here or in the bug report because they contain files not intended for the general public. how do submit the bug and associated files to unity?

Also we have been doing some additional testing with the latest unity build (5.1.2p3) and while we are very confident the issue is still with il2cpp (crashing has increased in il2cpp build) we are no longer sure that it is memory related as the memory warnings in the xcode memory profiler have disappeared.
as always thanks for any help you can give us.

8

@jack-riddell

Please submit a normal bug report, but do not include the links. Then you can send the links to me privately either via a conversation on the forums here or via email (joshuap at unity3d.com). Thanks!

9

new bug report with number 721044.

10

@jack-riddell

Thanks, we will have a look.