V500 Dalvik vs ART - G Pad 8.3 General

Hey Guys, I picked up a white V500 this weekend and will give the Mrs the choice of this or my Nexus 7 (2013) to use as her daily driver.
Having a look around the settings I was extremely suprised to see ART in developer options. (As its missing on my G2.)
As this thing is so new, I've not had the chance to compare things myself yet. I'm running firmware 20D.
I created this thread to discuss the performance/battery/stability etc of Dalvik vs ART. What are your thoughts?
On my initial battery test, my batter went down 24% on a 80 minute video at full brightness with wifi on running Dalvik. This was 1% worse than the Nexus 7. I thought this was reasonable and will retest using ART later.

I have run both and have not really noticed a change in battery life. Art seemed slightly snappier performance wise though... I was running a rom at the time though.

Yes, ART was much more responsive in my days of the Nexus 5.
I did another battery test using ART yesterday on an 80 minute video, 100% screen brightness with Wifi turned on:-
- Nexus 7 ART, down to 77%
- Gpad Dalvik, down to 76%
- Gpad ART, down to 77%
10 hours after, I looked at the Gpad again, and it was still on 77%. :victory:
As long as there are no stabililty issues, I'm staying on ART for sure.

Related

Nexus 4 Average Battery Life - How many hours you get out of your phone?

Nexus 4 Average Battery Life - How many hours you get out of your phone?
So far getting 13 hours with medium brightness.
Its not the total on time that really counts, it is the screen on time. And go to the great battery impression thread in the general forum!
Just finished getting 1d11hrs from it... I had run it down to 1% and fully meant to take screenshots when the phone shut down on me I had done "average" use as I use a phone... watched a little bit of an hd movie, facebook, a few calls, playing on google play and other stuff.
I'm coming from a Samsung Infuse and this is about on par with the battery life I was getting from that running CM10 unofficial on it when the ROM didn't have drain problems affecting it.
I don't know if this isn't typical of others' experience with the N4... I was cautious and plugged my baby in when I got it before even turning it on and let it charge up. It did have to do some calibration as with power off it thought it was at 100% but when it booted up, it registered 80% charge. Now after a few full drain/charge cycles it seems to have a very good feeling for 100% and 0%.
j.smith said:
Just finished getting 1d11hrs from it... I had run it down to 1% and fully meant to take screenshots when the phone shut down on me I had done "average" use as I use a phone... watched a little bit of an hd movie, facebook, a few calls, playing on google play and other stuff.
I'm coming from a Samsung Infuse and this is about on par with the battery life I was getting from that running CM10 unofficial on it when the ROM didn't have drain problems affecting it.
I don't know if this isn't typical of others' experience with the N4... I was cautious and plugged my baby in when I got it before even turning it on and let it charge up. It did have to do some calibration as with power off it thought it was at 100% but when it booted up, it registered 80% charge. Now after a few full drain/charge cycles it seems to have a very good feeling for 100% and 0%.
Click to expand...
Click to collapse
Even though i wasnt able to get my hands on it, my cousin did and he says he got 6 hour on screen time and at total of 22 hours for battery
Where are you getting this battery life? I get max 5 hours of moderate use Facebook twitter tapa talk, a game or two what gives?
Sent from my Nexus 4 using Tapatalk 2
Total battery time it differs but my screen time on average is around 4hrs.
Very low brightness, wifi always on.
I only use a few apps like sms, tweet lanes, instagram, flipboard, and espn.
I get 9 by barely using it. This phone has a serious problem. It's obvious because the Optimus G is a battery boss, and it even has LTE.
This phone had the exact same screen, internals, battery.
I got 5 hour screen time with aokp
dcdttu said:
I get 9 by barely using it. This phone has a serious problem. It's obvious because the Optimus G is a battery boss, and it even has LTE.
This phone had the exact same screen, internals, battery.
Click to expand...
Click to collapse
That's where you know it is software related. 4.2 has some bugs, the galaxy nexus got updated to 4.2 and people are reporting really bad battery life ever since the update. Also JB in general doesn't perform as good as ICS in the battery department cause of project butter that cranks the CPU up soon as you start using the phone. Example is Galaxy s 3.
Personally i get very good battery life and in very satisfied. When i was on stock my battery started really bad but then improved, now that I'm rooted and running a custom ROM and kernel i have very satisfying battery life.
Sent from my Mako Nexus quattro using Tapatalk 2

4.2.2 stock battery life worse?

I'm noticing that battery life is worse in 4.2.2 - I was on cm10.1 nightlies w. Cm10.1 kernel and was getting about 10 hours screen-on time before I needed to charge, but I'm getting 7 hours at best on 4.2.2 stock (rooted, bootlader locked).
I have the usual culprits turned off - Google now, location services, currents background updates etc. So I hoped I would at least get the same.
Anyone else?
eager27 said:
I'm noticing that battery life is worse in 4.2.2 - I was on cm10.1 nightlies w. Cm10.1 kernel and was getting about 10 hours screen-on time before I needed to charge, but I'm getting 7 hours at best on 4.2.2 stock (rooted, bootlader locked).
I have the usual culprits turned off - Google now, location services, currents background updates etc. So I hoped I would at least get the same.
Anyone else?
Click to expand...
Click to collapse
Put the latest cm10.1 build on. They merged in 4.2.2.
eager27 said:
I'm noticing that battery life is worse in 4.2.2 - I was on cm10.1 nightlies w. Cm10.1 kernel and was getting about 10 hours screen-on time before I needed to charge, but I'm getting 7 hours at best on 4.2.2 stock (rooted, bootlader locked).
I have the usual culprits turned off - Google now, location services, currents background updates etc. So I hoped I would at least get the same.
Anyone else?
Click to expand...
Click to collapse
I have never gotten more than 8 hours of battery life with 4.2.1, but so far on 4.2.2 I'm down to 73 with 3:30 screen time, so I guess it got better for me
Sent from my Amaze 4G using xda app-developers app
blackhand1001 said:
Put the latest cm10.1 build on. They merged in 4.2.2.
Click to expand...
Click to collapse
Yes! I just read that. I am just about to do it now.
I can't comment on battery life, but did notice something a little alarming with regard to battery drain. Was on the couch for an hour talking to someone using viber, just plain text. No video or audio. Tablet was plugged into the wall, and after about an hour i noticed that the battery had gone from 100% to 98%. Should not be possible for a simple messaging app to cause the battery to drain faster than it can charge. screen was on auto brightness as well.
hughlle said:
I can't comment on battery life, but did notice something a little alarming with regard to battery drain. Was on the couch for an hour talking to someone using viber, just plain text. No video or audio. Tablet was plugged into the wall, and after about an hour i noticed that the battery had gone from 100% to 98%. Should not be possible for a simple messaging app to cause the battery to drain faster than it can charge. screen was on auto brightness as well.
Click to expand...
Click to collapse
Did you look at your battery information to see what was using the most energy? Display is always far and away the highest for me, and if it was on Auto Brightness, depending on the lighting around you, it could have been running at full brightness...which would be a pretty massive drain on battery.
hughlle said:
Tablet was plugged into the wall, and after about an hour i noticed that the battery had gone from 100% to 98%. Should not be possible for a simple messaging app to cause the battery to drain faster than it can charge
Click to expand...
Click to collapse
Once the device reaches a full charge it cuts off the power draw to avoid damaging the battery. It's normal for it to hover between 97% and 100% while still plugged in.
I barely get 6 hours of use now.
Jackietreehorn said:
Did you look at your battery information to see what was using the most energy? Display is always far and away the highest for me, and if it was on Auto Brightness, depending on the lighting around you, it could have been running at full brightness...which would be a pretty massive drain on battery.
Click to expand...
Click to collapse
I did not look at battery usage, but the screen was generally dimmed, where as normally i have it manually set to full brightness, and nothing was running in the background that would not normally be running, that is to say nothing other than android stuff, it's basically a tablet for internet, email and skype/viber while i watch films etc on my computer
Fromako said:
Once the device reaches a full charge it cuts off the power draw to avoid damaging the battery. It's normal for it to hover between 97% and 100% while still plugged in.
Click to expand...
Click to collapse
Indeed, but this has never happened before and i typically run the device with screen on maximum brightness. on 4.2.1 it would always show 100% when plugged in, i never once saw it drop to 99% or below.
So without further analysis of the issue, it could either be that something is sucking more power, which would seem odd, or that the update has brought about changes to the way the device charges, or changes to the way the device displays the battery level.
Damn guys, I don't know what I'm doing wrong, but I'm jumping around in happiness when I manage to get over 6 hours of screen time lol.
I've been on battery for the past 12+ hours with about 6 hours 15 minutes screen time and still have 36% battery left. Battery seems at least as good as on 4.2.1.
... beamed from my Nexus 10 to your planet
bee55 said:
Damn guys, I don't know what I'm doing wrong, but I'm jumping around in happiness when I manage to get over 6 hours of screen time lol.
Click to expand...
Click to collapse
if you are rooted change your processor speed to 1.5gHz, it really helped me get better battery life
so far at 6 hours of youtube with 50% left to go
filthygoat223996 said:
if you are rooted change your processor speed to 1.5gHz, it really helped me get better battery life
so far at 6 hours of youtube with 50% left to go
Click to expand...
Click to collapse
Thanks, I've done this now, and get about 5~6 hours of screen time now with around 50% left.
My battery life has gotten considerably better after updating to 4.2.2. The biggest improvement is how little the battery life drains on standby...it's nearly nonexistent.
Sent from my Nexus 10 using Tapatalk HD
Standby has always been great for me. With stock rooted 4.2.2 I'm getting great battery life. Loses maybe 2% after 8-10 hours idle. In constant use I'm averaging 11 hours on screen. I have everything on and synced but as I'm indoors I stick to 30% brightness. Also, I'm mostly just browsing. With games the life would be less for sure. Totally satisfied with the battery life of this tablet. If yours is getting truly bad battery life I suggest you try searching for rogue apps. After that, try a complete reflash of the stock image which deletes everything. Another thing I've found that helps performance is setting the WiFi band manually. As I have a pretty good router that utilizes both the 5 and 2.4ghz bands I set mine to 5ghz only. I live in a town house and 2.4ghz can be pretty congested even after turning my antenna power up to 150mv or greater. The 5ghz band is pretty open. I'm getting load times on webpages comparable to my i5 2500k sandy at 4.5ghz and ssd with its 5ghz WiFi n wireless card. This is the quickest rendering tablet I've ever used.
As an aside, the complete re image to stock 4.2.2 from Google might fix reboot problems as well. It seems to do wonders for people with battery and other issues on early n4s. My screen on mine is new but the hardware is from launch day.
Sent from my Nexus 4 using xda premium
Well...
Well, I haven't tried that, but I have heard that many people said the update can help save battery.
i just got the update i was barley able to hit 3 hours screen time lets see how this one lasts.
sotorious said:
i just got the update i was barley able to hit 3 hours screen time lets see how this one lasts.
Click to expand...
Click to collapse
Three hours T h a T Is horrible
Sent from my HTC Ruby using xda app-developers app
My battery life is significantly worse after the update. I flashed back to stock 4.2.2. It seems that the problem with mine is my tablet isn't sleeping. Android os is the highest battery user. Maps is taking a lot too. I have Google now and location services turned on so I'll try disabling those again... No rebooting though
Sent from my Nexus 10 using Tapatalk 2
filthygoat223996 said:
if you are rooted change your processor speed to 1.5gHz, it really helped me get better battery life
so far at 6 hours of youtube with 50% left to go
Click to expand...
Click to collapse
do you mean reducing the maximum cpu clock to 1.5 ghz?

[Q] Stock LG vs. AOSP, CM ROM battery

Hello.
I noticed that on CM is battery drain faster than on stock LG rom. How is this possible if lg rom is bloated?
Has someone bettery battery life with aosp rom, or is LG always better?
kapybarus said:
Hello.
I noticed that on CM is battery drain faster than on stock LG rom. How is this possible if lg rom is bloated?
Has someone bettery battery life with aosp rom, or is LG always better?
Click to expand...
Click to collapse
I have actually had better battery life on cm. I have the latest nightly for Verizon
Sent from my LG-VS980 using XDA Premium 4 mobile app
oadam11 said:
I have actually had better battery life on cm. I have the latest nightly for Verizon
Sent from my LG-VS980 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
It all comes down the the kernel for the most part, in this case, I have seen exceptional battery life with AICP - http://forum.xda-developers.com/showthread.php?t=2494700 -
It's been stellar, and has an unbelievable number of options. It has rebooted on me in a week all of twice, which is way acceptable in my book compared to the bloat and stuff that comes on the LG rom. I love the rom, tons of themes out there on the playstore for 10.2, etc.
I was wondering the same thing, if the battery was going to be better or worse on AOSP.
I've been debating what direction I was going to go with software on my phone AOSP or custom stock
So i tried CM M1 snapshot. Usage was same as with debloated stock LG rom. Sync on, wifi or internet on, some low brightness and some high brightness.
I think that even phone was used more with LG rom, for same period of time LG rom was at 78-80% and CM rom was at 69 %.
As you can see from screenshots, no wakelock on CM.
Second screen is display.
In my experience, lg rom giving me better battery life than cm.
I get 24 hours battery life with 5 hours SOT with LG rom, with cm I only get around 4 SOT
Sent from my Nexus 4 using Tapatalk
It s quite big difference. Hope that future roms and kernels will improve battery compare to stock.
kapybarus said:
So i tried CM M1 snapshot. Usage was same as with debloated stock LG rom. Sync on, wifi or internet on, some low brightness and some high brightness.
I think that even phone was used more with LG rom, for same period of time LG rom was at 78-80% and CM rom was at 69 %.
As you can see from screenshots, no wakelock on CM.
Second screen is display.
Click to expand...
Click to collapse
Taking your battery to 69% after 18 hours with an hour screen on time is not an indication of anything other than great battery life for the first 18 HOURS!!
Then you DON'T post screen shots of the LG ROM and just say "I think" it was 10% higher and are upset?
At the rate you're going you'll be at 3 days with three hours screen on [email protected][email protected] - Now THAT was a scientific calculation!!
battery
For awhile i thought CM was better, but running the 11/7 version, it seems to be draining faster than stock
I haven't been particularly happy with my battery drain running AOSP (Cyanogen mod nightly at the moment) which is a pity because other than that it runs great.
What I've been doing is charging my phone up to 100% before going to bed then leaving it idle (connected to wifi) while monitoring it with BBS.
What I've found is it's draining at around 3-6%/hour. The strange thing is BBS shows that my phone is going into deep sleep mode so why the battery drain, possibly powermanagerservice wakelocks?
...
I made second test. Tried to use CM and stock ROM in same way (browsing, fb, some videos, calls, mails) plus I greeniefied some apps and some system apps and with same screen time I have result 84% stock rom for 1:20 screen time and 70% for same screen time in CM M1 snapshot.
On both screen was mostly at 0%, sometimes about 30-40% .
Honestly, can´t find any explanation why CM drains more battery, every post or article just said that it was wakelock or that CM just drains more battery.
Cm10 11/15 second discharge. No issues with battery here. LTE only
Sent from my LG-VS980 using Tapatalk
tacosrdelicioso said:
....
Cm10 11/15 second discharge. No issues with battery here. LTE only
Sent from my LG-VS980 using Tapatalk
Click to expand...
Click to collapse
Wow. What´s your magic.

Switching to ART 16% battery drop

This is probably a rough test but how much battery did you lose when you switched to art if you did? I was on 32% battery when art had finished switching over I was on 16% that's some drop, I know the CPU and ram must have a lot to do but come on.
The battery life I've had from this has been dire, I've been over the apps, I've lessened and lessened everything, I literally can't cut back any more, so the prospect of seeing 3 days etc just isn't going to happen, hence why I switch to ART runtime instead, I wanted to see if there was any gains, and yet in the time it's taken me to write this post, I've lost 2%.
Please can anyone clarify that this is happening to them too?
I'm coming from an S5 and i thought that was OK, but on the note 4 the battery is awful.
Will see ART out for the day and see how it goes.
In testing ART too but need to run a full week to get a real fell for performance and battery changes.
As for the switching drop, it's normal to lost 15-20% as all apps need recompiling but it's a onetime thing (unless you restart your phone), in which case it'll do the same again. So, don't restart!
Sent from my SM-N9100
Haven't restarted m8, but the battery is etrocious from what I've seen up til now, I haven't even rooted.
dladz said:
Haven't restarted m8, but the battery is etrocious from what I've seen up til now, I haven't even rooted.
Click to expand...
Click to collapse
Well you had to have restarted when you switched to Art, otherwise the change wouldn't have been applied. That explains your battery drop, so nothing to worry about there.
As for battery life in general, my non-rooted Note4 consistently gets about 5-6 hours of screen time and about 25 hours total run time. Note 4 battery is pretty good actually. Check out the battery life threads for comparison and see from there. Maybe something up with your particular model or a rogue app draining battery.
sefrcoko said:
Well you had to have restarted when you switched to Art, otherwise the change wouldn't have been applied. That explains your battery drop, so nothing to worry about there.
As for battery life in general, my non-rooted Note4 consistently gets about 5-6 hours of screen time and about 25 hours total run time. Note 4 battery is pretty good actually. Check out the battery life threads for comparison and see from there. Maybe something up with your particular model or a rogue app draining battery.
Click to expand...
Click to collapse
It was in reply to the previous user who said "Unless you restart"
Anyway, battery life is slightly better, I got 1 day and 20 hours with light ish use, so i'm happy with that, I have turned power saver on though.
And it isn't an app trust me, streamlining a phone is one of my strong points.

Battery life on Android 7.0

Hi guys,
It's the first day of running Android 7.0, upgraded last night, off the charger at 10 AM. Now it's 2:40 in the evening and I have 28% left with 2h30m SOT till now, so I guess a ~3H SOT till the phone turns off. I find this pretty bad.
Are you experiencing the same problems? What's your first day SOT with N?
LOL!! give it time breh...... give your phone and kernel a few cycles to see how things go. Maybe report back on the weekend. That should be enough time for it to adjust to your usage
This helps me:
1. Flash stock recovery
2. Make a factory reset (save your files)
3. Setup your N6P
4. Enjoy
I am experiencing low battery life too. But that was the case on Marshmallow too until I installed the ElementalX kernel. It's an impressive kernel for sure, even when I installed it plain, without any customization of my own when it asks when installing it.
Looking to go back to elemental but only after giving Nougat's update and its kernel few more days to showcase its ability. Finger crossed!
Perhaps it's user/expectation error, OP. Give it time or do some maintenance wipes. I've been using the previews and battery life is very similar to MM, if not improved.
Sent from my Pixel C using XDA-Developers mobile app
I also experiencing battery issue here. previously when using MM, i got > 4 hours SOT. but after upgrading to 7.0, i only get about 3 hours SOT. when I see the battery settings, the Android System is consuming more battery than the screen. I never had experience like this in MM
do you guys also have the Android System consuming much battery?
I got 4 hours and 8 mins. SOT with battery remaining at 15%. This is with sync and high accuracy location switched on. I also played 1 hours and 15 mins of NBA Live during this period. That said this is using black pepper v2 profile on stock kernel.
So for me it's not bad, though a few more cycles would be ideal to give a concrete evaluation of battery life. Doze does seem to kick in a lot more now, and phone is really deep sleeping when on standby so I think the results are promising.

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