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Questions tagged [dalvik]

Dalvik is the process virtual machine (VM) in Google's Android operating system. It is the software that runs the apps on Android devices. For optimization, the apps' Java Bytecode is compiled to Dalvik-compatible `.dex` (Dalvik Executable) files before installation on a device, which are stored in the so-called Dalvik Cache.

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28 votes
1 answer
4k views

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 ...
Paolo Amoroso's user avatar
6 votes
3 answers
12k views

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 ...
doylefermi's user avatar
6 votes
5 answers
107k views

Clearing Dalvik Cache without root?

I recently tried updating my Motorola Atrix 4g. It downloaded, and then it booted down to try to update. However, instead of updating, it ends up booting to a screen that just says Failed to boot 2 ...
Ephraim's user avatar
  • 450
47 votes
1 answer
120k views

Why Do I Need to Wipe Dalvik Cache?

When I'm updating a custom ROM, there's always an instruction to wipe the Dalvik cache. I don't see a reason why this is necessarily. Watching the logcat while the system is booting I can clearly see ...
user avatar
9 votes
2 answers
4k views

Can I change the dalvik cache location e.g. with a symbolic link?

I currently use Link2SD since my phone's onboard storage is insufficient for more than a few essential apps. It is very effective but limited to when the phone is on. While changing ROMs, the dalvik ...
gontadu's user avatar
  • 261
4 votes
5 answers
8k views

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 ...
Software Sainath's user avatar
3 votes
1 answer
4k views

What will be faster when moving to sd-ext via A2SD+ Data or Dalvik-cache? (or can I move both with no extra-penalty)

I'm using A2SD+ on my HTC Desire running on MIUI. Currently only the app and app-private are under /sd-ext, but I'm running out of space very quickly :) Currently my dalvik-cache consumes 46.3MB and ...
RonK's user avatar
  • 425
3 votes
2 answers
10k views

Installing USB driver for Micromax A50

I have to install USB driver for Micromax A50 . I have google USB driver installed through SDK Manager, but need a USB driver specifically for this device. To install this USB driver I think, I need ...
steve's user avatar
  • 31
2 votes
1 answer
902 views

Is deleting /system/bin/dex2oat file safe?

I was looking into a couple of Android tombstones files of an old Samsung phone running Marshmallow. Found a crash in every single one with the same culprit, dex2oat. From my limited understanding it ...
Ertox's user avatar
  • 21
2 votes
1 answer
15k views

Xposed Framework with KitKat ART?

I have an SGS-I8190 with CM11 from http://maclaw.pl/ I explored the Xposed Framework, but it is not compatible with ART. It switches back to the old buggy and lame Dalvik. XDA says, that ART ...
m0ddixx's user avatar
  • 33
1 vote
2 answers
2k views

Should I switch to ART? [closed]

ART has better performance and better battery life on paper at least. Should I consider switching to it on my moto g? What are the results I can expect? What precautions should I take? Is it easy to ...
kBisla's user avatar
  • 367
1 vote
1 answer
5k views

Wiping dalvik cache - Dalvik cache of uninstalled apps

I just came across the folder dalvik-cache having size of about 750MB. I searched for dalvik cache on google, and came to know that it is builded during boot up, and wiping this will make the next ...
Keshava GN's user avatar
0 votes
2 answers
4k views

How to clear caches in LG G2 running Lollipop 5.0.2?

The Lollipop update for AT&T LG G2 has pretty much destroyed my phone. I'm hoping clearing out every sort of cache might help. But I can't clear the caches the usual ways because (1) the ...
LakeHMM's user avatar
  • 350
22 votes
1 answer
23k views

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 ...
David B.'s user avatar
  • 223
20 votes
3 answers
118k views

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's user avatar
  • 350
0 votes
0 answers
56 views

"cold Blooded" hotspot : frequent internet connection failures. ... why do they happen

Short Story shorter Hotspot denies internet access to Puppy Linux client only on a specific laptop while all other clients have no issue ( the same laptop with Windows partition can connect ...
user1874594's user avatar
0 votes
1 answer
764 views

ART Runtime vs Dalvik Runtime [duplicate]

Recently I was looking through developer options on my Moto X and I was interested by the option to do runtime in either dalvik or ART. After doing some research I decided to change my runtime to ART. ...
michaelpri's user avatar