No cpu core ever turns off - Nexus 6P Q&A, Help & Troubleshooting

I'm on elementalx. Does anyone have the same issue?

They do, it's just a cosmetic issue with the app. This has been discussed in the Elemental X thread.
Sent from my Nexus 6P using Tapatalk

That's what happens when you release the phone 2 months later in europe I guess. Nobody has a clue about anything anymore. Thanks for clearing things up.

this is how it should be by default. As I understood, Google made some changes in kernel sources, all kernels are now displayed active, however, they are not. Google decided to do so, because it is more convenient to have all kernels active, they can just boost up when it needed to be done, so device works much faster and at the same time it does not affect battery life

The cpus dont go offline.
Sent from my Nexus 6P using Tapatalk

Related

Do custom Roms and kernels remove the lag?

Is it worth it to unlock bootloader and root for a custom ROM and kernel? Does it make a big difference in speed? Thanks and if so, any suggestion on a ROM and kernel to try out first?
Sent from my Nexus 7 using xda app-developers app
nazem said:
Is it worth it to unlock bootloader and root for a custom ROM and kernel? Does it make a big difference in speed? Thanks and if so, any suggestion on a ROM and kernel to try out first?
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
I have been a long time visitor to this site and every question like this has been given the same typical response "go try a few ROMs and see what you think". I have flashed a variety of ROMs on my N7 but have yet to find one which truly provides the user with a lag free experience across the board. I personally found SmoothROM to be one of the closest, though there are aspects of that ROM I'm not too keen on. One ROM I always find myself returning to though is Slim Bean; I guess you could make a start with those two. Irrespective of ROM I find turning sync off and removing all widgets etc. helps, though this shouldn't really have to be done!
Some will say my device is faulty, but who really knows. I guess some folk are simply less tolerant of lag than others (me being one of the former).
While it depends on the choice of the individual concerned, I for one do believe that rooting a device does have its advantages. ROMs and Kernels are a matter of choice but the most efficient way of reducing lags and increasing RAM is by removing bloatware and carrier/vendor/manufacturer apps.
diverblue said:
I have been a long time visitor to this site and every question like this has been given the same typical response "go try a few ROMs and see what you think". I have flashed a variety of ROMs on my N7 but have yet to find one which truly provides the user with a lag free experience across the board. I personally found SmoothROM to be one of the closest, though there are aspects of that ROM I'm not too keen on. One ROM I always find myself returning to though is Slim Bean; I guess you could make a start with those two. Irrespective of ROM I find turning sync off and removing all widgets etc. helps, though this shouldn't really have to be done!
Some will say my device is faulty, but who really knows. I guess some folk are simply less tolerant of lag than others (me being one of the former).
Click to expand...
Click to collapse
Thanks for your reply. With all these rumors of 4.3 coming in the next few days, i'll wait a couple of days then probably flash slimbean first.
Tianhe said:
While it depends on the choice of the individual concerned, I for one do believe that rooting a device does have its advantages. ROMs and Kernels are a matter of choice but the most efficient way of reducing lags and increasing RAM is by removing bloatware and carrier/vendor/manufacturer apps.
Click to expand...
Click to collapse
What is there that i could remove though considering it's a nexus?
Well the nexus 7 doesn't have much lag for me on stock with 1.7ghz over clock. It sits on the dock not used much all day so battery life isn't an issue, but it does only have a gig of ram where 2gb is ideal
Sent from my Nexus 4 @1.72 GHz on Stock 4.2.2
Every ROM I have been on has had lag with any kernel I have tried. Doesn't matter if it is stock or custom. What you should be asking is what tweaks and settings you can apply to reduce that lag. For instance, removing Window animation. That has drastically reduced lag for me. Every device has its own characteristics. What one person uses on their Nexus 7 may work wonders for you or may make things worse. You really have to find out for r yourself.
Sent from my Nexus 7 using xda premium
I'll add my own "It depends" here as well. Though I've found half the time people who use apps more heavily kill off the lag by simply turning off surface dithering (hasn't really been a problem for my Nexus 7 though, it mainly impacts graphical apps that don't utilize GPU acceleration).
nazem said:
What is there that i could remove though considering it's a nexus?
Click to expand...
Click to collapse
Yes, its a Nexus (lucky you) so that scope is limited. But I even remove apps considered sacrosanct e.g. Google components like Search, Dial etc. Like a said, the choice depends on the individual. However, u have a narrow playing field considering its a Nexus!
Tianhe said:
Yes, its a Nexus (lucky you) so that scope is limited. But I even remove apps considered sacrosanct e.g. Google components like Search, Dial etc. Like a said, the choice depends on the individual. However, u have a narrow playing field considering its a Nexus!
Click to expand...
Click to collapse
I'll mess around with diff. apps to see what affects it the most. Thanks for your feedback man, it was helpful.
IRX120 said:
Well the nexus 7 doesn't have much lag for me on stock with 1.7ghz over clock. It sits on the dock not used much all day so battery life isn't an issue, but it does only have a gig of ram where 2gb is ideal
Sent from my Nexus 4 @1.72 GHz on Stock 4.2.2
Click to expand...
Click to collapse
Yeah i think it's the RAM that probably hurts peformance. I hope the sequel has 2 gigs though.
nazem said:
Yeah i think it's the RAM that probably hurts performance. I hope the sequel has 2 gigs though.
Click to expand...
Click to collapse
But at least it's aosp and not something like sense on 1gb ram.
Sent from my Nexus 7 using XDA Premium HD app
kbeezie said:
But at least it's aosp and not something like sense on 1gb ram.
Sent from my Nexus 7 using XDA Premium HD app
Click to expand...
Click to collapse
Yeah that's true.
Sent from my Nexus 4 using xda app-developers app

ART vs Dalvik Experiment : Suggestions welcome!

So, now that ART is becoming more of a stable thing that works on more apps AND dual boot is available... I was thinking of doing an experiment of the same rom with all the same settings dual booting with 1 running Dalvik, and 1 running ART. Looking for suggestions on what kinds of tests on what rom(s) / kernels / mods you'd be interested in seeing?
Sounds like a great idea. I'd say test with the stock kernel to get a good baseline then maybe see if there is a difference with custom kernels. Benchmarks don't seem to show any increases with art if anything they're lower. But to me art seems smoother transitioning between apps and basic ui usage. I'd say also throw in the moto x dalvik tweak.
Sent from my Nexus 5 using Tapatalk
ART was stable since day 1. It were the apps that needed to support it...
Sent from my Nexus 5 using Tapatalk
Yea, and I was thinking now with screen recording, it might be a good way to see it in action directly. So I guess the first option would be to be completely stock / odexed / etc?
I agree about the ART stability, but the end result for the normal user was the same - issues.
Only thing I would worry about is the overhead of the screen recorder might impact performance. I know on my pc screen recording had a significant impact on performance.
Sent from my Nexus 5 using Tapatalk
Ahh. Good point. What about screen recording via PC + adb? Haven't looked into it yet so just spitballing...
Sent from my... brain?
Elisha said:
ART was stable since day 1. It were the apps that needed to support it...
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
No, they solved several critical bugs in 4.4.1 (check change log). And I am sure some remains.
Sent from my Nexus 5 using Tapatalk

Kernels?

I've been searching all day and haven't found a lollipop kernel that isn't more than a slightly modified stock kernel. Am I just blind or are there pretty much only pre-lollipop kernels?
EddyTeddy01 said:
I've been searching all day and haven't found a lollipop kernel that isn't more than a slightly modified stock kernel. Am I just blind or are there pretty much only pre-lollipop kernels?
Click to expand...
Click to collapse
I've been looking too and I don't think there are any, bar Khaon's. I'm not sure if this is f2fs only, not read into too much. However, I'm using rastapop rom and its working great, pretty much stock but with a few select features, which happened to be just what I was looking for.
Sent from my Nexus 10 using XDA Free mobile app
Hayth said:
I've been looking too and I don't think there are any, bar Khaon's. I'm not sure if this is f2fs only, not read into too much. However, I'm using rastapop rom and its working great, pretty much stock but with a few select features, which happened to be just what I was looking for.
Sent from my Nexus 10 using XDA Free mobile app
Click to expand...
Click to collapse
What about wifi? Mine is fubar under cm12 and stock lollipop. Haven't found a kernel either.
Khaon's kernel isn't just for f2fs, I'm using it right now on Dirty Unicorns ROM. It has a few governors, schedulers, OC/UV. It has been working great for me so far.
omgi0wn said:
Khaon's kernel isn't just for f2fs, I'm using it right now on Dirty Unicorns ROM. It has a few governors, schedulers, OC/UV. It has been working great for me so far.
Click to expand...
Click to collapse
I just installed Purity ROM on my N10. Was using Franco Kernel before (planned to stay on KitKat) but it was buggy as hell and I tried to reach out to him multiple times, via here and G+ but he never cared to reply back. So glad I paid for it.
I'm using the stock kernel installed with Purity. You think the above Kernel would have any issues with the ROM?
I looked at his Gdrive folder here and he has two different ones. Using the tablet because I'm traveling I can't see the whole filename.
Which one should I choose?
Thanks.
usafle said:
I just installed Purity ROM on my N10. Was using Franco Kernel before (planned to stay on KitKat) but it was buggy as hell and I tried to reach out to him multiple times, via here and G+ but he never cared to reply back. So glad I paid for it.
I'm using the stock kernel installed with Purity. You think the above Kernel would have any issues with the ROM?
I looked at his Gdrive folder here and he has two different ones. Using the tablet because I'm traveling I can't see the whole filename.
Which one should I choose?
Thanks.
Click to expand...
Click to collapse
I am on the 2/17 kernel right now, I'm not entirely sure what the differences between the two kernels he has up there are. I think once might allow sabermod which I think was recently included in his ROM, not entirely sure though.
Sent from my Nexus 10 using Tapatalk
omgi0wn said:
I am on the 2?17 kernel right now, I'm not entirely sure what the differences between the two kernels he has up there are. I think once might allow sabermod which I think was recently included in his ROM, not entirely sure though.
Sent from my Nexus 10 using Tapatalk
Click to expand...
Click to collapse
Thanks. Wanted to make sure since I'm traveling and if I throw a boot loop, I won't have any way to recovery from it.
Are you using some 3rd party app for the O/C - kernel settings etc or does he have a specific app for kernel management?
usafle said:
Thanks. Wanted to make sure since I'm traveling and if I throw a boot loop, I won't have any way to recovery from it.
Are you using some 3rd party app for the O/C - kernel settings etc or does he have a specific app for kernel management?
Click to expand...
Click to collapse
He doesn't have any personal kernel management software but Aero Kernel, SetCPU or something along those lines should do the job.
omgi0wn said:
He doesn't have any personal kernel management software but Aero Kernel, SetCPU or something along those lines should do the job.
Click to expand...
Click to collapse
I am using now kernel audiutor. It is very good !! Everything is supported should give a try.
If the man himself recommends a certain kernel management program, chances are I'm going to try that one out.
Thanks, just flashed your Kernel on my N10 running Purity ROM. So far, no boot-loop. Looking forward to it.
Do you have any recommended settings for the N10 + your Kernel?
Khaon said:
I am using now kernel audiutor. It is very good !! Everything is supported should give a try.
Click to expand...
Click to collapse
EddyTeddy01 said:
I've been searching all day and haven't found a lollipop kernel that isn't more than a slightly modified stock kernel. Am I just blind or are there pretty much only pre-lollipop kernels?
Click to expand...
Click to collapse
There maybe hope for a Lollipop 5.1.0 Franco kernel for the Nexus 10, see this post from the Nexus 5 forum where Franco mentions his kernel/devices priorities.
http://forum.xda-developers.com/showthread.php?p=59405055
Sent from my Nexus 10 using XDA Premium HD app
usafle said:
If the man himself recommends a certain kernel management program, chances are I'm going to try that one out.
Thanks, just flashed your Kernel on my N10 running Purity ROM. So far, no boot-loop. Looking forward to it.
Do you have any recommended settings for the N10 + your Kernel?
Click to expand...
Click to collapse
Hello,
basically, stock kernel performs also well, but I don't like the default "tunnables".
Governor : you can stick with interactive and default values I made : I changed touch boost to be kernel side and the touchboost duration is 200 ms, however, you can decrease it to 100ms(that's i am using).(default value is 500ms)
io scheduler: you can switch from BFQ to fiops or ZEN. The io scheduler handles who is reading or writing to the disk. If you mainly multitasking(torrents,music,beo<insg, etc at the same time) bfq is good, otherwise you can switch to fiops or zen
Ofc undervolting: our device is set up with high voltage, basicaly I can reduce 100~150mV but this DOES NOT APPLY to everyone, you have to test yourself your own chip to figure out which voltage is required to have it stable.
Khaon said:
Hello,
basically, stock kernel performs also well, but I don't like the default "tunnables".
<SNIP>
Click to expand...
Click to collapse
I don't know if its just MY device or some other issue. I'm running Purity ROM and after flashing your kernel I can actually watch my battery drain.
Its been 47 minutes and I'm already down to 89%. At this rate it will be dead in 3 hours +/-. Only using Wifi and screen is set to lowest brightness setting. No gaming, just using Boat Browser and sending Hangout messages.
I'm using Greenify to kill any apps in the background and I've used SDMaid to stop any unnecessary apps from running on startup.
Not sure what the issue is or if you even want to be bothered trying to diagnose? Not meant as a slight to you or your work at all just don't know if this is just a issue with mine or others are having the same problems?
I've already let the device die and recharge a few times thinking it was the battery stats being reported incorrectly but it doesn't seem to be the case.
Any suggestions? Ideas?
Thanks.
usafle said:
I don't know if its just MY device or some other issue. I'm running Purity ROM and after flashing your kernel I can actually watch my battery drain.
Its been 47 minutes and I'm already down to 89%. At this rate it will be dead in 3 hours +/-. Only using Wifi and screen is set to lowest brightness setting. No gaming, just using Boat Browser and sending Hangout messages.
I'm using Greenify to kill any apps in the background and I've used SDMaid to stop any unnecessary apps from running on startup.
Not sure what the issue is or if you even want to be bothered trying to diagnose? Not meant as a slight to you or your work at all just don't know if this is just a issue with mine or others are having the same problems?
I've already let the device die and recharge a few times thinking it was the battery stats being reported incorrectly but it doesn't seem to be the case.
Any suggestions? Ideas?
Thanks.
Click to expand...
Click to collapse
Hm there are out there many apps to check battery drains and what process consumes energy.
I dont know much of that, but I use betterbatterystats, I know- from screen I saw- there are more complete software, yes I would bother trying to fix anything broken as long as I am given at least the minimum information
usafle said:
I don't know if its just MY device or some other issue. I'm running Purity ROM and after flashing your kernel I can actually watch my battery drain.
Its been 47 minutes and I'm already down to 89%. At this rate it will be dead in 3 hours +/-. Only using Wifi and screen is set to lowest brightness setting. No gaming, just using Boat Browser and sending Hangout messages.
I'm using Greenify to kill any apps in the background and I've used SDMaid to stop any unnecessary apps from running on startup.
Not sure what the issue is or if you even want to be bothered trying to diagnose? Not meant as a slight to you or your work at all just don't know if this is just a issue with mine or others are having the same problems?
I've already let the device die and recharge a few times thinking it was the battery stats being reported incorrectly but it doesn't seem to be the case.
Any suggestions? Ideas?
Thanks.
Click to expand...
Click to collapse
Hi there!
Check of your device is actually going into deep sleep. There is an issue with the latest google play services. It prevents the device from going to sleep. I am using CM12 nightly and i suffer from this issue as well.
Nexus 10 and Oneplus one.
Beaster said:
Hi there!
Check of your device is actually going into deep sleep. There is an issue with the latest google play services. It prevents the device from going to sleep. I am using CM12 nightly and i suffer from this issue as well.
Nexus 10 and Oneplus one.
Click to expand...
Click to collapse
What should be the newest version of Google Play Services? Mine is showing 7.0.97 (1791429_ 436)
Thanks.
usafle said:
What should be the newest version of Google Play Services? Mine is showing 7.0.97 (1791429_ 436)
Thanks.
Click to expand...
Click to collapse
Yeap same here. The next cm12 nightly willnhave the necessary commits to solve the issue

Device Encryption

So, of course last year the Nexus 6 had encryption turned on by default and developers argued that they software based encryption slowed the phone down considerably. I know that some people ended up turning off encryption and saw significant improvements in the speed of the device as a result.
The question is then, and I have not been able to find any definitive answers on this.
1. Will the Nexus 6P come with encryption on by default?
2. Is encryption software based or hardware based now?
3. Will the 64 Bit processor alleviate performance issues caused by software based encryption?
deckard67 said:
So, of course last year the Nexus 6 had encryption turned on by default and developers argued that they software based encryption slowed the phone down considerably. I know that some people ended up turning off encryption and saw significant improvements in the speed of the device as a result.
The question is then, and I have not been able to find any definitive answers on this.
1. Will the Nexus 6P come with encryption on by default?
2. Is encryption software based or hardware based now?
3. Will the 64 Bit processor alleviate performance issues caused by software based encryption?
Click to expand...
Click to collapse
1. Not sure
2. Software but Google claims it is even faster than hardware would be. See: http://www.androidpolice.com/2015/0...eam-says-its-better-than-hardware-encryption/
3. Yes see above
deckard67 said:
So, of course last year the Nexus 6 had encryption turned on by default and developers argued that they software based encryption slowed the phone down considerably. I know that some people ended up turning off encryption and saw significant improvements in the speed of the device as a result.
The question is then, and I have not been able to find any definitive answers on this.
1. Will the Nexus 6P come with encryption on by default?
2. Is encryption software based or hardware based now?
3. Will the 64 Bit processor alleviate performance issues caused by software based encryption?
Click to expand...
Click to collapse
In today's Reddit AMA with the Nexus team they confirmed it's software based encryption.
Sent from my SAMSUNG-SM-G925A using Tapatalk
If they are wrong about the speed the good thing is there will be options to turn it off. Long live nexus development.
this should be an easy fix using the android kitchen posted in the Nexus 6 forum, this method requires a clean install using the Nexus Factory images so you will lose all userdata if you decide to un-encrypt (assuming it works the same)
Wouldn't worry, videos I've seen show it to be very quick
Sent from my Nexus 6 using Tapatalk
I've had an N6 since launch, the only thing that slowed down was boot up time
Sent from my Nexus 6 using Tapatalk

curnals used to over clock nexus 7 2012 with lollipop, 5.1.1

Hi All,
Yep, a nubie here. Recently, I have obtained a first generation nexus 2012 tablet, after my polaroid dying, and not liking samsung. to start with, I was worried of getting it, as the hardware, after all, is 5 years old, and was worried of it lagging, sort of like the iphone 4s did on IOS9. unfortunately, I was right. as a talkback user, the tablet is almost beyond useless. it's up to the point, where if I turn it off, and turn it back on, I can't use it for a good 5 minutes, the lag just takes control, and there's nothing I can do. So I started looking around, and came across over clocking. I've found 2 curnals that claim to do this on the nexus, but one is for JellyBean, and the other is for marsh mallow, and in the case of the latter, it's for the 2013 model. so my question is simply this. what curnal can I safely install on this tablet, without recking it, that will allow me to over clock? a quick search on here didn't get me far, so thought I'd post.
PS. clearing the cash partition fixes the lag for about 2 days, that is really not an option.
What you should do is install a lollipop custom ROM. I recommend paranoid Android lollipop. Also install team win recovery project. These reduce lag. Overclocking is not advised as it can already get Pretty hot under load.
Sent from my SM-G386T using Tapatalk
Hi,
first, thanks for the reply, and this leaves me 2 questions.
1] how is the accessibility of custom RAMS?
2] if I install a custom RAM, [which I thought about, anyway] any particular reason why I shouldn't go higher, to say, android 6 or 7? thanks much.
You could go higher but performance will vary but there are custom ROMs that do let the device go higher I just can't guarantee speed ad reliability.
Sent from my SM-G386T using Tapatalk

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