yashsingh1/xdaforums huggingface dataset:
[Nexus 5 General] italia0101:
Indeed.. but if you also look , it shows some minus numbers too ... so in some cases ( according to that site ) its worse than dalvik... i just don't think its the holy grail as some think it is

also the conclusion :

"Now for the real question: is it worth switching to ART right now? Google obviously isn't recommending it for regular users, and I tend to agree. While ART seems very solid and I feel like responsiveness is better - possibly just the placebo effect - there are still circumstances where it is unstable and causes apps to crash. If there is even a single instance where you have to switch back to Dalvik to get an app to run correctly, that inconvenience far outweighs the minimal performance gain you might have had. Once I've finished this series, I will probably stick to Dalvik for the remainder of KitKat; and I imagine most people will be better served by doing the same"
[Nexus 5 General] jlevy73:
100% agree. That was the point of the article. ART is improved in certain functions and dalvik is better in others. There is certainly no clear winner with the exception that if you want 100% stability, Dalvik is still the way to go.

---------- Post added at 10:56 AM ---------- Previous post was at 10:52 AM ----------

And here is one more from Android Police doing battery benchmarks for ART vs Dalvik.

http://www.androidpolice.com/2014/0...ery-life-benchmarks-not-good-but-not-too-bad/

Once again, no clear winner.
[Nexus 5 General] Ubichinon:
Guys, ART is technically superior to dalvik. It gets lower Memory scores cause it uses more memory on the device. The fact its not yet optimised doesnt mean is not better.
[Nexus 5 General] thesebastian:
2 months in ART.

This week i came back to Dalvik. Tapatalk with many post and images LAGs like hell, even with the stock kernel. (With ART is pretty smooth).

The only issue i had with ART is that some apps/games crash when i exit them
[Nexus 5 General] wideasleep1:
That 'conclusion' is just another opinion nonetheless.What if...you have experienced no crashes? What if...ART has always been more stable than dalvik IN YOUR OWN experience? What if...you understand the limitiations of benchmarks, and their ability to tell the whole story, let alone define user experience? His concluding opinion doesn't wash for the apps I use or ART in general, based on MY experience (running exclusively Android since G1 days). I see tangible benefits in regular daily use, and I'm always eager to to try/test clean efficient code over more convoluted code if it proves TO ME to be beneficial. ART met that challenge, and is a better user experience than dalvik, in MY experience. Better future-proof code IS the holy grail.
[Nexus 5 General] italia0101:
Enjoy .. In MY experience .. I didn't see an awful lot of difference for daily use ...

Games loaded faster .. But honestly that's all I could tell ...
[Nexus 5 General] wideasleep1:
If games load faster, it's placebo! ;) That's my point. Your own experience is all that matters, not some blogger, poster or writer's opinion.
[Nexus 5 General] italia0101:
Well iv actually made a video comparing them...
[Nexus 5 General] undercover:
Who wins?

Sent from my ? phone
[Nexus 5 General] italia0101:
https://www.youtube.com/watch?v=PHYjoO_65zs&feature=youtube_gdata_player

Of course these are my views .. Its by no means scientific
[Nexus 5 General] monkeypaws:
Thank you so much for pointing out what is the real picture instead of just making it a pissing contest. I have not read about the file size increase and that is interesting. Also it seems to optimize game load times and media but not so much app load times, I'd say the differences are negligible as the numbers aren't too far off, visually and quantitatively. Also glad you again printed out it is experimental and there's a reason its a hidden option. I do hope that Google optimizes it even more so there is less space taken up and most apps are supported .
[Nexus 5 General] wideasleep1:
Bear in mind this and other ART discussions put devs in the seat of supporting ART, and since November, most devs have made needed changes. Many apps were compliant and issue-free from the start, others needed minor touch-up to code, other more. There are a few holdouts, as can be expected, because the task may be too daunting, considering it's 'experimental feature' mode. I have other niggles with my Nexus 5 unrelated to ART, but I can say my Nexus 4 (and 5) have been remarkably stable with nary a FC on ART, versus dalvik. Responsiveness and stability are higher priorities for devs and users than load times.
[Nexus 5 General] monkeypaws:
Sorry xda doesn't let me quote you. ^^^ but yes I agree. I'm learning the basics of app development and it couldn't come at a time when there's more new stuff to learn. While I may not have anything released this year, I do agree that its important to understand that app developers be compliant in making their apps art compatible. I consider myself an above average user. I have tinkered with most of my phones and don't plan on doing so with this one. But as I said, once Google gives regular users the go and releases their next version with art as default run time I'll be ready.
[Nexus 5 General] wideasleep1:
Also wanted to clarify there's plenty of room for the values of dalvik versus ART, but I think concluding ART as a 'placebo' (an inert drug, only a subjective appearance of effect) is the incorrect, and expedient way to be dismissive of it. Those doing so typically have a closed mind or agenda on the subject. There are clear code (native vs. interpreted) and user-experience differences, and by definition, 'placebo' is an incorrect word. AndroidPolice writer should have said 'perceived' rather than 'placebo'...now we have a chorus of 'placebo' naysayers, which perpetuates the pointless pissing contest. ;) Congrats on learning app development! It's an ART unto itself! /couldn't resist! :D
[Nexus 5 General] m.aren:
... did ART have any effect on the battery life of your phone compared to Dalvik?

Gesendet von meinem Nexus 5 mit Tapatalk
[Nexus 5 General] italia0101:
For me ... Not a noticeable difference no
[Nexus 5 General] Langduscher:
Switched back to Dalvik for Xposed.

Did not know how fast to switch back to ART for speed & battery. ART wins hands down.

Well not really. But noticeably!
[Nexus 5 General] patriotaus:
I didn't realise there was such an argument over ART v Dalvic. I have noticed no battery differences but with ART, when I press an App it loads nearly instantly, while on Dalvic there is a lag.

This is what everyone has always complained about Android, the lag of opening apps. They fixed it and now people are being dalvic fanboys. I understand if you want to run dalvic if you have some app incompatibility.
[Nexus 5 General] Rxpert:
Its not fanboyism

ART is nothing more than a beta at this point. If you want to run it, great.
[Nexus 5 General] WarRaven:
I run it, nothing hiccups on it that I use.

Scrolling long documents or web pages as well as switching apps is hands down a win for me on ART.

I'll give up overclocking and perhaps root before ART.

WR

Sent from my Nexus 5
[Nexus 5 General] meangreenie:
It's weird how all the YouTube comparisons show little to no difference in opening apps?

And how can art possibly affect scrolling on apps not written in low level Java?

As for apps switching, well you given up 20-30% storage space for that, off course it will switch ever so slightly faster... but you probably find the most recent opened apps are in cache memory.. so no difference there.

Don't paint all apps in the same colours as poorly coded Google ones... for example using lmt pie, recents button reacts instantly wether using art or dalvik, unlike googles poor 3 button effort.. no doubt poorly coded and in low level Java.
[Nexus 5 General] vipinbp:
Loved ART.. But switched back to dalvik for the extra space :P

Using those dalvik and bionic tweaks.. I'm happy enough.. It's not like the lag is too much on this beast of a phone..
[Nexus 5 General] FuMMoD:
After running ART for a week there is no difference in battery life, apps eat up a crazy amount of space, system is actually noticeably smoother so I'm able to underclock and have a smooth experience. I noticed people praise the scrolling like it's a god send and I had high expectations. Well I was slightly satisfied with the scrolling. It's only slightly better but then again I'm running a fresh clean rom install too. App switching through recents is a really good experience and very quick. Apps loading seems to be placebo since I didn't notice any difference until I read people saying it loads faster. Even then the difference is so slight it doesn't feel like any change. Art is good even though it's in a testing phase. People that state all these crazy differences really need to chill because dalvik with patches is almost the same experience except for recents switching. I can't really sacrifice xposed for ART so I'm sticking with dalvik until xposed supports ART.
[Nexus 5 General] r0cky0790:
Art is wonderful but at the moment milliseconds, if that, of lag is worth the extra customizations at this point. If it was ready for everyday use it would be set by default.

"Cataclysm + ElementalX + Dalvik/Bionic Patches + Exposed + Gravity Box & Candy shop Mods + Jishnu's Camera Mod/LG G2 Camera Port + Latest GPU Drivers + -75 UV Across The Board + 4 OC Cores @ 2.226 GHz + TWRP" My Nexus Is The ?,┌П┐[◣_◢]┌П┐!
[Nexus 5 General] jlevy73:
Agree with most everything you said. The only difference I have noticed is that in apps that are very poorly coded, ART helps to smooth out the rough edges. For example, I use an app called Wechat which is absolute garbage and lags heavily with dalvik but with ART, it's much smoother. For apps that are properly coded the difference is marginal.
[Nexus 5 General] CupiD101:
time required for the switch ?

Does anyone know how much time is required to switch from delvik to ART. I have like 30 user apps on my phone.

Thanks . :D
[Nexus 5 General] hamad138:
2mins?
[Nexus 5 General] abdel12345:
I had around 35 user apps and it took around 5-7 minutes
[Nexus 5 General] Playe:
Yeah i switched back for xposed but the extra space and compatibility is nice
[Nexus 5 General] gotzaDroid:
I had to switch back to dalvik because of one app I use that crashed on ART. I do miss ART though, a smoother scrolling experience in apps and a consistent 30 minutes extra screen on time vs. dalvik.
[Nexus 5 General] ConorCX:
I switched to ART a few days ago. I haven't noticed that much improvement in performance. The battery is fine if a little better. I don't have many apps installed so it took around 5 to 6 minutes to optimise the apps on first boot with ART. Scrolling is as smooth as before.

I can't wait to see where Android is going with this in future versions.

Sent from my Nexus 5
[Nexus 5 General] pedromartinez1983:
hey guys i cant seem to get art to stick everytime i enable it when it restarts dalvik is still running.. ANY HELP
[Nexus 5 General] :
Hi,

I guess you are using Xposed stuff?

If yes, it's normal: http://xdaforums.com/showthread.php?p=50163642... for now Xposed framework is not compatible with ART runtime so to avoid bootloop it goes back to Dalvik runtime automatically.

:)
[Nexus 5 General] pedromartinez1983:
YEAH im using xsposed .:(
[Nexus 5 General] :
Then you need to make a choice between Xposed or ART...
[Nexus 5 General] Enddo:
i wonder if there has been any updates from the Xposed dev about ART. last i heard he was working on it
[Nexus 5 General] :
Hi,

Nothing more than what there is in the link I posted with the last quote from the dev about ART compatibility...

You can also check the the Xposed thread: http://xdaforums.com/showthread.php?t=1574401.

:)
[Nexus 5 General] jlevy73:
[MENTION=2920816]Hammer_Of_The_Gods[/MENTION] pointed out one post about the devs thoughts on ART. I read somewhere else (forgot where) where basically he said he was working on it but it was a royal pain the butt. In all likelihood he made mention not to expect compatibility until google removes the experimental label from ART.
[Nexus 5 General] d2616ae26016:
I wonder if there is any Xposed alternative or if it will ever become compatible with ART since I'd really want to switch but I also want to keep using Xposed....
[Nexus 5 General] :
It depends the features you use (you need) with the Xposed modules...?

Did you ever read the link I posted..., just in case: http://xdaforums.com/showpost.php?p=50163642&postcount=478 (oh yes, it needs a bit of reading...).

:)
[Nexus 5 General] tien113:
we shouldn't use ART at the moment.
[Nexus 5 General] Ben36:
Care to explain your amazing comment?
[Nexus 5 General] tien113:
because some apps don't support ART like line, xposed,... at the moment. if u don't have problem with it. u can use ART.
[Nexus 5 General] Soldier 2.0:
You said it like doing so would be wrong. If your favorite apps do not run on ART then go ahead and switch back.
[Nexus 5 General] topgeardave:
Between switching back and forth between ART and Dalvik for the last few weeks and I've noticed battery life is pretty much the same. I'm going to stick with Dalvik because it takes too long to upgrade the apps when flashing nightlies on ART.
[Nexus 5 General] datallboy:
Comparing ART to optimized dalvik patch, which generally gives better battery and performance?
[Nexus 5 General] Mikulec:
Has anyone come up with a solution to the optimizing all apps after each boot while on ART?
[Nexus 5 General] lolcopter:
each boot? that's not supposed to happen. only when cache is cleared does that happen here
[Nexus 5 General] Mikulec:
Yes I know, thats why I am asking. The same issue was reported here few time without any solution.
[Nexus 5 General] lolcopter:
what are you running? I've been on ART for months with a stock N5 and a rooted N7 running PA+m-kernel and I've never seen this on either device?

flashing nightlies I can understand tho as the scripts prob clear cache every time
[Nexus 5 General] Mikulec:
Slimkat.

For science I flashed stock odexed rom and the problem was fixed, but after flashing back to Slim the problem is still there. But it looks like I am the only one with this issue on SlimKat. It really starting to piss me off. I have to wait more then 5 minutes till I can use my phone after reboot.
[Nexus 5 General] GabrielOspina:
Very helpful thread , I had issues and automatically assumed it was the devs or exposed module , but its just art.
[Nexus 5 General] vinicius.rodsilva:
Great thread!

I have a Nexus 5 and switched to ART... everything works great. I was having a small delay on home button animation on Dalvik, and ART fixed it.
[Nexus 5 General] atishey23:
One question:- if I switch to ART..I've heard that the the sdcard space gets less. So when I switch to dalvik will I be able to get that occupied space back? Or I have to factory reset?<br />

<br />
[Nexus 5 General] lolcopter:
Yes ART uses slightly more space because of the way apps are installed when compared to dalvik, although I think the difference in space used is nearly negligible on a daily use case

Switching back to dalvik would presumably regain that space back, no factory resets are needed, the system will just recompile/optimize reach app/cache
[Nexus 5 General] Larzzzz82:
noob question.

Will ART work on a galaxy nexus? Running CyanogenMod kitkat and juuuuust might give it a shot.

Kudos to the op... I found the switch as it were, in the dev options. and look what a search turned up for me..
[Nexus 5 General] topgeardave:
Ask the forum where you got your rom from. It should work as legacy devices like my Sensation work fine
[Nexus 5 General] yankees45us:
ART not switching on my Nexus 5

I have a Nexus 5 running stock rom with r32 Franco kernel and for some reason my ART is not switching on. After selecting it under developer mode it restarts but goes back to Dalvik. Any suggestions? Thanks
[Nexus 5 General] defffizz:
Do you have xposed installed? If you do, than uninstall it, xposed doesn't support art

Bright Red Nexus 5, Trinity
[Nexus 5 General] :
Hi,

If you are using Xposed framework it's normal...: http://xdaforums.com/showpost.php?p=50163642&postcount=478.

And: http://xdaforums.com/showthread.php?t=1574401.
[Nexus 5 General] yankees45us:
Thanks for the answer. That's exactly it. As much as I want to try ART for battery life I really like my xposed modules. I am very torn right now! dang it. Thanks again.
[Nexus 5 General] defffizz:
Same with me. I love the speed and smoothness of ART (multitasking is simply a breeze), but I have more than a few modules which I very much rely on, so it was a difficult decision for me. At the and, I'm staying with dalvik, with trinity kernel and z2 dalvik and bionic patches my n5 is still a speed demon, and I get to keep xposed :)

Послато са Nexus 5 уз помоћ Тапатока
[Nexus 5 General] yankees45us:
How do you like trinity kernel? Are you on stock rom?

I just hope that android finishes their beta on ART so that the developer for Xposed can finally work on it. I give mad props to developers and support them whenever I can and hope this is done sooner rather than later.
[Nexus 5 General] defffizz:
I think trinity iz amazing. The only custom kernel which is, in my opinion, faster than the stock. Battery life is on pair with the stock kernel, if not better.

Послато са Nexus 5 уз помоћ Тапатока
[Nexus 5 General] yankees45us:
Just looked up some reviews on trinity and although some say battery life is better than stock kernel it isn't as good as franco but it runs very smooth, stable and they say its the fastest kernel because it runs all 4 cores on the processor or something like that and you can still underclock to help with battery. Definitely going to try it. Thanks
[Nexus 5 General] Hecke92:
I switched to ART, but cannot boot my phone because of this CM-bug. Is it possible to Switch back to Dalvik using fastboot or something like that?

Thanks.
[Nexus 5 General] rdiehl13:
ADB Sideload. Looks like this is what you're looking for.

http://xdaforums.com/google-nexus-5/general/to-dalvik-art-flashable-zip-t2673457
[Nexus 5 General] topgeardave:
Could you link us to your z2 bionic and dalvik patches? Cheers
[Nexus 5 General] :
Hi,

Here: http://xdaforums.com/showpost.php?p=51486862&postcount=1177, but warning about the Dalvik patches, it depends on the rom you're running. If you are always with CM (your signature) don't flash them-> no boot. Use the one in the last link from my post.
[Nexus 5 General] topgeardave:
Thanks mate, which patches do you think play best on our phones? I assume the M8 GPE as it's closest to AOSP?
[Nexus 5 General] :
I edited my previous post, if you are on CM only this one (in attachment): http://xdaforums.com/showpost.php?p=50926626&postcount=1009. About the Bionic patches, they are all equals in benches and general UI.

Maybe it will be better to continue here: http://xdaforums.com/google-nexus-5/general/mod-dalvik-bionic-library-optimization-t2537299...

:)
[Nexus 5 General] saugatdb:
Well till now I have found ART working better than dalvik. I was having an issue of sudden restart in my nexus while using dalvik runtime. Not sure if its due to runtime or something else, but since I changed it to ART, no restart till now. :)
[Nexus 5 General] funky_snowman:
ART seemed to be significantly more unstable with a lot of the apps I use. Force closes, and unwanted restarts when turning the screen on. I'll wait until it is the default runtime.
[Nexus 5 General] :
I was using ART, then one day I went for a run and Nike+ app was extremely slow and lagged. Went back to Dalvik until Nike fixes this.
[Nexus 5 General] trdspectacoma:
How do we get the game saves from dalvik to run in ART
[Nexus 5 General] siravarice:
When I choose the ART runtime in the developer options, my phone just restarts as normal and won't chance the runtime. Anyone else have this problem?

Phone is rooted and running Xposed Framework.
[Nexus 5 General] bblzd:
Doesn't work with xposed, switches itself off to save you the trouble.
[Nexus 5 General] siravarice:
Thanks for the quick reply. Guess I'll be waiting until it's the default runtime then, I use Xposed way too much to leave for a tiny improvement in speed and battery life.
[Nexus 5 General] arlrb:
Xposed devs are working on a ART version... So they say
[Nexus 5 General] Yaz75:
So I don't know if it's been posted before, but MLB AtBat App won't run in ART.

Which stinks because i liked ART and I found the phone to be really snappy running it. But to watch the live feed for games, I had to switch back to Dalvik..
[Nexus 5 General] BaneX_991:
I use Dalvik because a lot of app that I use do not work on ART. It's quicker on ART but not so drastic, because vanilla KitKat on Nexus it is more fluid.

sorry for my bad english.
[Nexus 5 General] hacksome:
Stuck with Dalvik as long as XPosed.
[Nexus 5 General] madgibbon:
No sure what you mean. If you've been using your phone with dalvik then switch to ART application data (including save games) shouldn't be effected. If a particular application fails after switching to ART its a compatibility problem rather than a data (save game) issue. In this situation it's up the developers to make there apps ART compatible.
[Nexus 5 General] Rotondo:
wolfram alpha doesn't work with art :\

the latest version
[Nexus 5 General] Mr. Steve:
Works perfectly fine on my N5 and N7, both using ART.
[Nexus 5 General] Rotondo:
which version? i'm using the latest version. in my LG g2, the app doesn't open :\

using this version: 1.3.0.5060489
[Nexus 5 General] Mr. Steve:
Just checked, version 1.3.0.5060489 is what I have and it works perfectly with ART. Maybe there is something different on the G2?
[Nexus 5 General] md1008:
Don't know if anyone's posted this but apparently art is expected to not work with root after 4.4.3 when it arrives. I am guessing the hold up with 4.4.3 is probably art.

http://www.ibtimes.com/android-443-...ed-developer-expects-rooting-problems-1586672
[Nexus 5 General] rockknee:
I don't see that much improvement on art anyway. Of course if I compared it to dalvik side by side difference would be noticable but not just like testing them separately. About next android update; it doesn't matter what it does cause it just seems to get delayed over and over again. Seriously half a year is a long time on smartphone/tablet industry and we have got 0 updates. I believe next update is going to be the major one (4.5 or 5).
[Nexus 5 General] md1008:
What ever the update it would really suck if Google was cracking down on root. Next update dalvic maybe optional but it may not always be so. Just imagine flashing slimkat or cm12 with no root access. Who knows all just speculation. I somewhat agree, I don't think 6 month is a terrible time frame just release bug fixes and stability features now and then. Like Gingerbread was around for long time yet had at least 7 updates. By the time Gingerbread was eol it was very stable. Of course by that time it was time for a much needed change
[Nexus 5 General] Flooney:
Can't wait to see ART working with Whatsapp :)

Love this app, but wondered hard why it's not working correctly with ART...

Gesendet von meinem Nexus 5 mit Tapatalk
[Nexus 5 General] Shardzmi:
So 95% of all apps work but whatsapp doesn't and it's likely a bug on Google's part? Ugh... I don't think so. If the majority didn't work I'd understand but there are 5 apps in total that don't work. I do understand that it's not finished, I'm just saying that the bugs currently existing are not because of Google.
[Nexus 5 General] Bobtehblob:
My guess is that the next release if android will be 5.0 and that ART will be shipped as default along with a number of other performance increases.
[Nexus 5 General] Langduscher:
Battery seems to be better, was on 3G all this morning, 5hrs total & 2.5hrs SoT and 51% left.

Should have been better, when I didn't use it for 2.5hrs I noticed it had dropped battery significantly and Whatsapp was highest in battery stats (just the regular battery stats in settings - still have to install KitKat compatible BBS).

Anyone else noticed this too?

I deleted Whatsapp from my phone to see is that helps with idle battery.