iOS APP 启动时间优化
附:控制台输出预启动时间log
Total pre-main time: 246.58 milliseconds (100.0%)
dylib loading time: 72.98 milliseconds (29.5%)
rebase/binding time: 51.10 milliseconds (20.7%)
ObjC setup time: 71.53 milliseconds (29.0%)
initializer time: 50.76 milliseconds (20.5%)
slowest intializers :
libSystem.dylib : 2.65 milliseconds (1.0%)
libMainThreadChecker.dylib : 15.49 milliseconds (6.2%)
MediaServices : 8.14 milliseconds (3.3%)
ONBUS : 12.92 milliseconds (5.2%)