4 ms·

This is orthogonal, but the AOT versus JIT difference between ART and Dalvik is hugely overstated. Dalvik attempted to AOT compile, and when that wasn't possibl

by personZ 12y ago

This is orthogonal, but the AOT versus JIT difference between ART and Dalvik is hugely overstated. Dalvik attempted to AOT compile, and when that wasn't possible it also maintains a pre-compiled cache for subsequent runs. Similarly, while ART attempts AOT, for various reasons it often resorts to JIT with some types of code. They both behave incredibly similarly. ART is a ground-up rewrite of Dalvik. The AOT thing seemed to take root as some sort of differentiating talking point.

_delirium 12y ago
> The AOT thing seemed to take root as some sort of differentiating talking point. I think it took root in part because even end-users who were only casually interested saw a dialog suggesting as much on upgrade. When you upgraded to an Android version that used ART, you got a message telling you that the apps were being precompiled, which took a while to finish.
- crwll 12y ago
  There is currently no released version of Android that uses ART out of the box. It's available behind the development options in KitKat and as default in the L developer preview, but that's it. The "optimizing applications" screen comes after system upgrades also with Dalvik.