iOS 单个app最大可以获得多少运行内存

我们都知道程序运行的时候,有很多临时数据需要存到内存中,比如单例和临时列表数据等等。这时候就想到,一个app最大可以使用多少内存空间呢。

别人做过的测试,没有实践准不准: https://stackoverflow.com/questions/5887248/ios-app-maximum-memory-budget

Results of testing with the utility Split wrote (link is in his answer):

device: (crash amount/total amount/percentage of total)

iPad1: 127MB/256MB/49% iPad2: 275MB/512MB/53% iPad3: 645MB/1024MB/62% iPad4: 585MB/1024MB/57% (iOS 8.1) iPad Mini 1st Generation: 297MB/512MB/58% iPad Mini retina: 696MB/1024MB/68% (iOS 7.1) iPad Air: 697MB/1024MB/68% iPad Air 2: 1383MB/2048MB/68% (iOS 10.2.1) iPad Pro 9.7": 1395MB/1971MB/71% (iOS 10.0.2 (14A456)) iPad Pro 10.5”: 3057/4000/76% (iOS 11 beta4) iPad Pro 12.9” (2015): 3058/3999/76% (iOS 11.2.1) iPad Pro 12.9” (2017): 3057/3974/77% (iOS 11 beta4) iPad Pro 11.0” (2018): 2858/3769/76% (iOS 12.1) iPad Pro 12.9” (2018): 4598/5650/81% (iOS 12.1) iPod touch 4th gen: 130MB/256MB/51% (iOS 6.1.1) iPod touch 5th gen: 286MB/512MB/56% (iOS 7.0) iPhone4: 325MB/512MB/63% iPhone4s: 286MB/512MB/56% iPhone5: 645MB/1024MB/62% iPhone5s: 646MB/1024MB/63% iPhone6: 645MB/1024MB/62% (iOS 8.x) iPhone6+: 645MB/1024MB/62% (iOS 8.x) iPhone6s: 1396MB/2048MB/68% (iOS 9.2) iPhone6s+: 1392MB/2048MB/68% (iOS 10.2.1) iPhoneSE: 1395MB/2048MB/69% (iOS 9.3) iPhone7: 1395/2048MB/68% (iOS 10.2) iPhone7+: 2040MB/3072MB/66% (iOS 10.2.1) iPhone X: 1392/2785/50% (iOS 11.2.1) iPhone XS Max: 2039/3735/55% (iOS 12.1)

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