ART has been introduced in Android 4.4 KitKat experimentally. We can I turn it into settings and later in development options. There are a choice of runtime to choose from: Dalvik (default) and the new ART.
As is advised in technical documents for developers, we must do so at our own peril, because some applications may not work correctly. It is geared only for developers who want to optimize their applications to the new virtual machine and send feedback.
It seems that the news of the purchase by Google Flexycore responsible for DroidBooster to improve the performance of Android, is beginning to bear fruit. In the coming months they will work to optimize ART in a future release and see noticeable improvements with this internal change in the http://duplicates-gone.com architecture of Android. For now, it's just not a step we launch the rooftops that require much integration ahead.
Maybe Android 5.0 will default ART and say goodbye to Dalvik. As more technical data to developers we can find these two runtimes in Android 4.4 code. The Dalvik (libdvm.so) and ART (libart.so) standard. Each works with different files once compiled java classes: ODEX for Dalvik and OAT ART for translation has incorporated some lessons translate such compilation dex2oat for.
Engadget Android | Since the source code for Android 4.4 (KitKat), Android 4.4 (KitKat) officially announced is available, these are the main developments.