Questions tagged [art]

ART (Android RunTime) is an experimental Virtual Machine (VM) added in Android 4.4 (KitKat) as an alternative to the original Dalvik VM. Like Dalvik, it uses .dex files. Unlike Dalvik, it converts .dex files to .oat files on installation.

ART is the default VM in the upcoming Android L release.

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What kind of app optimizations do newer Android versions do at the first reboot?

I received from my phone carrier, Vodafone IT, the official OTA Google update to Android Ice Cream Sandwich 4.0.4 on my Nexus S. When automatically rebooting for the first time after the update, the system displayed a notice stating that it was…
Paolo Amoroso
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Manually switch from ART to Dalvik

I wanted to try out the new ART runtime, but didn't realize my custom ROM doesn't support it. So now I am getting recurring Force Closed messages after booting, and can't get through to the settings menu to switch back to Dalvik. So before I wipe…
David B.
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Dalvik VM vs. ART (Android Runtime): Impact for end-users?

With Nexus 5 (Android 4.4 KitKat), Google has shipped two runtimes to run apps. What are the differences between Dalvik & ART for endusers? How can endusers be affected by this? Is there any specific reason I should choose new ART runtime?
iOS Enthusiast
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Clear Caches from ADB?

How do I clear caches (app, individual apps, Dalvik, ART if possible) via ADB? Using apps, recovery, or doing it through Settings are not options for me. Also, my phone is not rooted.
LakeHMM
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What is the zygote process still doing in Android L?

I am trying to figure out the specific differences in the Dalvik and ART runtimes. I realize that ART no longer uses the Dalvik VM, however, one of the first things I noticed after installing the Android L preview was that the zygote process is…
John
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Why is ART not available on Nexus 7 (2012) or Nexus 10 running Android 4.4?

I just updated my Nexus 7 to Android 4.4 KitKat and was looking forward to testing out ART, but that option isn't available. I got word that the Nexus 10 also lack this option, but I can't find any info as to why that is. Anybody have anything to…
jishi
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Should Dalvik Cache be wiped in Android OS that supports ART?

When switching custom ROMs (in ART), is it necessary to wipe the Dalvik Cache? Wiping the Cache is necessary, but should wiping Dalvik (which doesn't exist in Android Lollipop and afterward) be necessary? What impact will it cause if we wipe Dalvik…
doylefermi
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Does ART run apps code natively

Since the new ART runtime is compiling the apps AOT, I was wondering whether running an app still includes a virtual machine, or the code is executed directly on the system. I haven't been able to extract this information from articles around the…
bpou
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How do I switch to ART runtime on my Samsung Galaxy S4?

I have Galaxy S4 and I'm trying to find the menu to switch to ART runtime, but I can't find it. The Android version is KitKat 4.4.2. Does Samsung disable this feature?
Ankur Singh
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Can you change the runtime on an encrypted phone (KitKat)?

Nexus 5 owner here. Basically, I encrypted my phone a while back while on Dalvik Runtime and recently wanted to give ART a try again (to check app compatibility). The problem is that when I set ART as the default runtime and reboot, it doesn't try…
Daniel Kotin
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Album art doesn't change

So I've been successfully using programs to change album arts for my cellphone for the past 3 years and something bothers me about the way that the actual app on the Samsung reverts this changes under the following circumstances: If I've put a music…
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How to fix instant lock “unfortunately com.android.systemui has stopped” on Moto G with ART

I have had this problem for a couple of days on my first-generation Motorola Moto G. Normally a restart would fix it. However now I am faced with the following error message when trying to unlock the phone after a restart: Unfortunately the process…
bennettleben
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Nexus 5 has no settings to change runtime

I'm using Nexus 5. It was running on KitKat and I updated to Android L. I wanted to try and check out if it's running on Dalvik or ART, but the settings to change runtime in the Developer Option is not there. Does my phone have to be…
afwcxx
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Moto E Not Starting Properly After Changing runtime to ART

I have recently bought a MOTO E and it's working cool. Then I have enabled Developer options and changed my runtime from Dalvik to ART. Afterwards I restarted my device. I got the message saying Android is upgraging. After completeing the process I…
Software Sainath
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Is ART on Lollipop the same as on KitKat?

I have issues with skype on my KitKat phone with ART enabled. None too serious, but launching is very slow. Will the same issues plague me on Lollipop when my phone gets it?
samsung
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