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Won't Fix
Votes
0
Found in
2017.3.1f1
Issue ID
1100123
Regression
No
[iOS] 12.1.2 apps cannot consume as much memory as iOS 11.x apps
To reproduce:
1. Open users attached project "MemTest.zip"
2. Build for iOS
3. Deploy the Xcode project to iOS device
Expected result: 12.1.2 apps can allocate as many meshes as iOS 11.x apps
Actual result: 12.1.2 apps cannot allocate as many meshes as iOS 11.x apps
Results:
2019.2.0a1:
iPhone 8+ iOS 12.1.2
Meshes:520000
Resident memory: 1,433 MB, Used: 1,740 MB
iPhone 8+ iOS 11.0
Meshes: 540740
Resident memory: 1,128 MB, Used: 2,023 MB
_________________________________________________________________
2019.1.0a14:
iPhone 8+ iOS 12.1.2
Meshes: 517750
Resident memory: 1,404 MB, Used: 1,740 MB
iPhone 8+ iOS 11.0
Meshes: 537250
Resident memory: 1,271 MB, Used: 2,036 MB
_________________________________________________________________
2018.3.1f1:
iPhone 8+ iOS 12.1.2
Meshes: 534250
Resident memory: 1,350 MB, Used: 1,761 MB
iPhone 8+ iOS 11.0
Meshes: 559000
Resident memory: 1,103 MB, Used: 2,014 MB
_________________________________________________________________
2018.2.20f1
iPhone 8+ iOS 12.1.2
Meshes: 542250
Resident memory: 1,377 MB, Used: 1,723 MB
iPhone 8+ iOS 11.0
Meshes: 559000
Resident memory: 1,071 MB, Used: 1,975 MB
_________________________________________________________________
2017.4.19f1
iPhone 8+ iOS 12.1.2
Meshes: 559000
Resident memory: 1,394 MB, Used: 1,633 MB
iPhone 8+ iOS 11.0
Meshes: 559000
Resident memory: 1,242 MB, Used: 1,810 MB
These results are from `host_statistics`
(http://web.mit.edu/darwin/src/modules/xnu/osfmk/man/host_statistics.html)
Notes:
with iOS 11.0 the app closes and doesn't pause on memory limit exception
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Resolution Note (2019.2.X):
This is due to iOS 12 memory accounting scheme, see
https://forum.unity.com/threads/ios-12-large-memory-usage.558550/page-4#post-4271797