Android ART & DVM & JVM

Android ART - DVM - JVM

• ART(Android Run Time) 

- Compile : AOT(Ahead Of Time)

- Register Architecture : 모든 피연산자가 메모리 & 레지스터 조합 (레지스터 + 메모리)

- java.io, java.net, android.*, com.goolge.*

- run : OAT(ART)

- GC : Customized Mark-Sweep(CMS) Algorithm(DVM GC 일시정지에 비해 1/2 번 작용)

• DVM(Dalvik Virtual Machine)

- Compile : JIT(Just In Time)

- Register Architecture : 모든 피연산자가 메모리 & 레지스터 조합 (레지스터 + 메모리)

- java.io, java.net, android.*, com.goolge.*

- run : dex, ODEX

- GC : Mark-Sweep(CMS) Algorithm

• JVM(Java Virtual Machine) 

- Stack Architecture : 후입 선출 스택 사용(수명이 긴 임시 값을 보관하기 위함)

- java.io, java.net, javax.swing.*

- run : jar

- GC : 직렬 -> 단일 가상 프로세서, 병렬 다중 스레드 사용

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• DVM & ART 아키텍처

출처 : https://en.wikipedia.org/wiki/Android_Runtime

• JVM아키텍처

출처 : https://en.wikipedia.org/wiki/Java_virtual_machine

출처 : 

http://androiddeveloperindelhi.blogspot.kr/2012/10/comparison-of-dalvik-vm-with-java.html

https://aatul.me/2013/04/17/dvm-vs-jvm/

https://ko.wikipedia.org/wiki/안드로이드와_자바의_비교

http://www.onsandroid.com/2011/12/dvm-vs-jvm.html

https://en.wikipedia.org/wiki/Stack_machine

https://en.wikipedia.org/wiki/Register_machine

https://en.wikipedia.org/wiki/Register_memory_architecture

https://medium.com/@nitinkumargove/how-garbage-collection-works-in-dalvik-vm-in-android-bf781ab48531

http://www.oracle.com/webfolder/technetwork/tutorials/obe/java/gc01/index.html

https://en.wikipedia.org/wiki/Android_Runtime

https://android.jlelse.eu/closer-look-at-android-runtime-dvm-vs-art-1dc5240c3924

https://willowtreeapps.com/ideas/the-android-runtime-the-butter-weve-all-been-waiting-for

https://en.wikipedia.org/wiki/Java_virtual_machine