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 ...

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2
votes
1answer
40 views

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 ...
0
votes
0answers
12 views

Can't change to Dalvik from settings…How to change from Art to Dalvik? [duplicate]

Changed to art from dalvik and the androi.process is stopped over lock screen
-1
votes
0answers
60 views

Changed from dalvik to art now storage is 0.0B? android.system.process stopped

Device: Moto G The process is stopped over the lock screen. How do I access the file manager? How do I change from Art to Dalvik? I can't change to Dalvik from settings.
1
vote
1answer
145 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 ...
-1
votes
1answer
82 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. ...
0
votes
2answers
78 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 ...
0
votes
2answers
123 views

ART makes facebook app non installable

I have an Android 4.4.2 phone and I enabled ART instead of Dalvik. When I go to the Google Play Store and try to install Facebook, it can't install the app. I get two errors, sometimes I get ...
7
votes
1answer
4k 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 ...
0
votes
1answer
136 views

Scala and ART, android runtime

I understand that Dalvik has a just-in-time compiler. The android team is making ART, android runtime, which has an ahead-of-time compiler. Effectively using Scala can increase code execution time ...
2
votes
1answer
5k 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 ...
2
votes
2answers
254 views

Flash the newer version of ROM over the old one on ART environment

I've flashed Carbon ROM on my LG G2 (D802) device and when e new Nightly release, I download it and put it on my SD Card and dirty flash it (Only clean Dalvik cache and cache partition). Now I've ...
0
votes
2answers
386 views

Is it possible to run a PS2 emulator through Android's DVM?

I have heard some random posts from people on forums claiming that Android's Dalvik Virtual Machine can't handle something of the magnitude of a PS2 emulator, such as this one ported somewhat. Is ...
0
votes
2answers
1k views

Device stuck in bootloop after enabling ART

I activated the Android Runtime (ART) instead of Dalvik and after that my phone rebooted but it seems that it's stuck in a bootloop. Will the first bot after choosing ART take some extra time? How ...
0
votes
1answer
46 views

Is the Android desktop screen (on any version) a Dalvik executable?

I know that all Android apps, as far as I know, are compiled to Java bytecode, turned into dex code (for the Dalvik Virtual Machine), and then executed with respect to whatever ABI is compatible ...
1
vote
1answer
95 views

Is Odex really faster?

Is an odex file different from the dex file generated and stored in dalvik-cache? Is it faster? More optimized? Or just the same? Most people mention the benefit of improved boot speed after wiping ...
0
votes
0answers
317 views

Android 4.4 Switched from ART to Dalvik after reboot, why?

I was going through the /data/data folder to delete some app leftovers and noticed there was multiple listings of the lost+found folder. However, selecting one selected all. I could only enter/select ...
1
vote
1answer
552 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 ...
0
votes
0answers
215 views

Why doesn't my /cache/dalvik-cache exist?

I was in CWM Recovery, and decided to wipe the cache and the Dalvik cache. I later exported and looked at the log, which showed the following: -- Wiping cache... Formatting /cache... Cache wipe ...
9
votes
1answer
8k views

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 ...
1
vote
1answer
3k views

Why is the ART VM slower than the Dalvik VM, at sorting an array when the array size is 62000?

Look at row 62 of this graph. It is the time taken for a quick sort integer array, on a VM for android 4.4 (KitKat). How come that ART is faster except at an array size of 62000? In fact, it is ...
1
vote
1answer
345 views

What is the dalvik speed patch?

Lately I've been hearing about a dalvik speed patch to supposedly increase the interpreting speed of apps through the dalvik JVM. The only mention on Google is Facebook's "hack" of the dalvik JVM to ...
1
vote
1answer
48 views

Why does the number of apps “optimized” not reflect removed apps?

I've read the details on what optimizing does here: What kind of app optimization does Ice Cream Sandwich do at the first reboot? And my question is slightly followup. I run CM nightlies on my ...
0
votes
0answers
47 views

Why does TI backup say there's still unnecessary cache?

I noticed that the newer version of Titanium Backup says I still have unneeded Dalvik Cache to clean up, even after I reboot and wipe dalvik cache in Clockworkmod. Where are these extra cache files, ...
2
votes
3answers
16k 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 ...
4
votes
3answers
1k views

Why each android application runs on a different Dalvik VM process?

I have read that each android applications runs on a different Dalvik VM process (all forked from zygote). I also read that these VMs are really lightweight and use copy on write buffers and all ...
2
votes
2answers
3k views

What to do when the Dalvik cache is full but the operating system does not recognize it?

I have a strange scenario - my dalvik cache is full of dex files - around 150MB of space, but it appears that the operating system does not recognize these files as related to any application. I ...
1
vote
0answers
28 views

How can I move dalvik cache to a custom location(permanently)? [duplicate]

Possible Duplicate: Can I change the dalvik cache location e.g. with a symbolic link? I have Huawei u8160 running Cyanogenmod 7.2. I have activated sd-ext partition using Link2SD, so it's ...
26
votes
1answer
53k 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 ...
3
votes
2answers
8k 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 ...
1
vote
1answer
888 views

Cannot see my device in Dalvik Debug Monitor [duplicate]

Possible Duplicate: installing USB driver for Micromax A50 I have android gingerbread (2.3.6) . I wanted to take a screen shot so i enabled USB-Debugging,connected the USB,started ddms but ...
8
votes
1answer
2k 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 ...
2
votes
1answer
3k 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 ...
13
votes
1answer
6k views

How to keep the size of the Dalvik cache small?

I have an issue with the Dalvik cache getting huge and occupying almost all of the space on my phone. I'm running Cyanogenmod 7.X. For the record, I have about 5-6 small applications on my phone ...
4
votes
2answers
2k views

Cannot install from market applications I used to have

I changed my ROM to cyangenmod 7, and I cannot install some of the applications I used to have (like skype for instance). Here's what I got so far: When I'm downloading it from the market it starts ...
19
votes
1answer
964 views

What is Dalvik cache?

When installing custom ROMs most recommend clearing the Dalvik cache. What exactly is Dalvik cache?
1
vote
2answers
2k views

Why does Dalvik virtual machine need to run in every process?

JVM and DVM both provide virtual environment. JVM doesn't need to be in every process. why DVM need to be in every process? Thanks.