I want to ask you if I understand the compiling process correctly.
After exporting Android app into .apk file we receive byte code (.apk).
When we want to launch our app on Android device:
Dalvik:
byte code (.apk) -> Dalvik VM JIT compilation -> compiled native code -> execution of the programme (whole programme is allocated in the memory)
This Dalvik JIT compilation is executed each time we lauch the app.
ART:
Installation:
byte code (.apk) -> ART VM AOT compilation -> compiled native code
App launch:
native code -> execution (only some part of the programme allocates memory)
AOT compilation is proccessed only once after app installation.