Database Users

60C too hot? Nexus 7

Hey guys I have my nexus 7 OC to 1.6ghz? MIN and MAX. It runs on 60C is that too hot? I'm using motley's kernel 520mhz GPU ?

iTzTrevor said:
Hey guys I have my nexus 7 OC to 1.6ghz? MIN and MAX. It runs on 60C is that too hot? I'm using motley's kernel 520mhz GPU ?
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its a little warm, but normal for 1.6ghz if youre using the device.

What is considered too hot? 70C ? I do have a gaming PC and do the same rules apply to what is considered too hot? For me 80C is too hot for my GPU on my PC. Is it fine to have the same mindset when it comes to my N7?

iTzTrevor said:
What is considered too hot? 70C ? I do have a gaming PC and do the same rules apply to what is considered too hot? For me 80C is too hot for my GPU on my PC. Is it fine to have the same mindset when it comes to my N7?
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stock thermal throttle is 85C(some custom kernels set this higher or lower). at that point the device will lower the cpu speed to cool itself off. safety shutdown is at 100C. if at 1.6ghz, and gaming, its probably normal to go into the 70C's if its a cpu intensive game. it also depends on the outside temp, the cooler its outside, the cooler the device will be.

Any way to revert back to the stock kernel settings? I reflashed the Stock kernel for the nexus 7 but i want to know its governor and voltage and etc back to full stock settings.

iTzTrevor said:
Any way to revert back to the stock kernel settings? I reflashed the Stock kernel for the nexus 7 but i want to know its governor and voltage and etc back to full stock settings.
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if you didnt change anything, it would boot up at its default settings. or if you have set something with a cpu app to boot, unset it and reboot.

Thanks. I wanted to do a comparison of different kernels and see which fits best for my everyday usage.

72° is when system panics
Sent from my Nexus 7 using xda app-developers app

Harry GT-S5830 said:
72° is when system panics
Sent from my Nexus 7 using xda app-developers app
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depending which kernel youre using and what temp the thermal throttle is set for. you can even remove tbermal throttle when building a kernel, but the phone would just shut down when reaching the safety temp.

iTzTrevor said:
Hey guys I have my nexus 7 OC to 1.6ghz? MIN and MAX. It runs on 60C is that too hot? I'm using motley's kernel 520mhz GPU ?
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You might want to buy this...
http://www.amazon.com/Cooler-Master...UTF8&qid=1356771776&sr=8-1&keywords=hyper+212

iTzTrevor said:
Hey guys I have my nexus 7 OC to 1.6ghz? MIN and MAX. It runs on 60C is that too hot? I'
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Nobody can answer your last question unless you post a screenshot of your system info.

Rcoil73 said:
Nobody can answer your last question unless you post a screenshot of your system info.
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He got an answer like 4 months ago.
Sent from my Nexus 7 using xda premium

Overclocking

Can someone please explain to me why none of the kernel's have OC ability?// I think it's due to quad core overheating but I'm not sure and would really love an actual explanation.. Thanks
Sent from my Nexus 4 using xda premium

they all started with OC ability right at the beginning, then .. a good few number of people had HARDWARE bricked devices, that had a fault with the battery no longer being connected or something
they all had overclocking in common, since then , its been removed on most or all kernels

I'm sure that as time progresses it will be made available again. What's the need to clock anyway its fast enough as it is
Sent from my Nexus 4 using xda premium

zephiK said:
I'm sure that as time progresses it will be made available again. What's the need to clock anyway its fast enough as it is
Sent from my Nexus 4 using xda premium
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This is true, its a 1.5ghz quad core lol why do we need more ?
Also what was happening in some kernels was that mpdecision (which is qualcomms code that says when the cores should be on and offline, i.e hotplug) was using the hardware maxs of each kernel, so if the kernel was capable of going to 1.8ghz, even if you set the max to 1.4ghz ( using software) , mpdecison would override the software and use the hardware max.. therefore.. .it would ramp all cores up to 1.8.. which caused a major cluster ****..

italia0101 said:
This is true, its a 1.5ghz quad core lol why do we need more ?
Also what was happening in some kernels was that mpdecision (which is qualcomms code that says when the cores should be on and offline, i.e hotplug) was using the hardware maxs of each kernel, so if the kernel was capable of going to 1.8ghz, even if you set the max to 1.4ghz ( using software) , mpdecison would override the software and use the hardware max.. therefore.. .it would ramp all cores up to 1.8.. which caused a major cluster ****..
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Will I certainly don't need it. Would it be nice to have? Yeah but it isn't on the top of my priority list.
What he's saying about mpdecision is true. If you read the change log for Franco kernel he removed mpdecision and is working towards a open platform for kernels. So we should hopefully be seeing more goodies.
Sent from my Nexus 4 using xda premium

Mulit-core hacks

So I have a very thought out question now I have a 4 core phone right? Well my battery life is below average and I was wondering if I had all my cores running at once would it balance out battery life? I just need some help from someone who knows about all this and are all cores mandatory?
Sent From My Liberated E970

You can select how many active cores are activated with trickster mod and (necessary!) a kernel that supports this.
Sent from my Nexus 7 using Tapatalk 4

I know how to and can with my kernel but I need to know if more cores are activated if the battery life will be better or worse
Sent from my Optimus G using XDA Premium HD app

I would definitely take a look in to what my batter usage is and how to control that before I worry about the cores. Just my two cents.
P.S. I am sorry but I believe the Multi-core in the title is spelled wrong.

mr turtle droid said:
I know how to and can with my kernel but I need to know if more cores are activated if the battery life will be better or worse
Sent from my Optimus G using XDA Premium HD app
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More cores active would mean more processing power, and more processing power requires more energy(atleast on the same cpu), so disabling most of your cores would result in better battery life, maybe by a little bit though.

Hahaha I didn't realize it said mulit
Sent from my Optimus G using XDA Premium HD app

useful topic

It seems to me that by disabling cores wont make a difference to your battery life, only to your performance. It doesn't matter if 2 cores work for 5 seconds or 1 core works for 10 seconds, it is practically the same power consumption

Play around
I would say download CPU-Z from the Play Store and look how much Cores are active and which clock they're at.
Then flash a custom Kernel, which lets you control the clock, govenor and how much cores are active, undervolting may increase your battery life too.
Play with the settings (PLEASE DO NOT RAMP UP THE CLOCKS or set the voltage to the lowest point you can, it may break your phone, stay reasonable, it's not my fault if your phone bricks) and look what's best for you.
Pro Tip: Take a look at the different govenors and look what they do. Google them!
Greetz Leevee33
I hope I could help you a little

Im using trickster mod and I know about all of this I studied up and have undervolted by 200 MV stable but I'm using the hotplug settings to 1:2 so not all 4 cores are active and I get almost two days on one charge!so I guess that does mean less cores use less power
Sent from my Optimus G using XDA Premium HD app

P8 lite,is it really octa core or quad core?

I came across kernel auditor and info says that our P8lite only fou core are in used the remaining four are offline..is there any way to activate the remaining 4 core.?
See screenshot:

mreps07 said:
I came across kernel auditor and info says that our P8lite only fou core are in used the remaining four are offline..is there any way to activate the remaining 4 core.?
See screenshot:
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It's octacore, with the correct governor and while performing a heavy task, every core will be activated

@XePeleato
Yes, but shouldn't kernel aduitor be able to enable all 8 cores.. I tried enabling but it automatically disabled
Sent from my ALE-L21 using XDA-Developers mobile app

amageek said:
@XePeleato
Yes, but shouldn't kernel aduitor be able to enable all 8 cores.. I tried enabling but it automatically disabled
Sent from my ALE-L21 using XDA-Developers mobile app
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The cores are activated by the kernel, not by an application (it can communicate with the kernel tough) , if the kernel deems it necessary, it will activate them.
And what's happening to you is that the kernel thinks that enabling those cores is not needed, so it turns them off to save energy

XePeleato said:
The cores are activated by the kernel, not by an application (it can communicate with the kernel tough) , if the kernel deems it necessary, it will activate them.
And what's happening to you is that the kernel thinks that enabling those cores is not needed, so it turns them off to save energy
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Ok thanks for details man..
Sent from my ALE-L21 using XDA-Developers mobile app

Octa.

Now I must say..it is really octa core..thanks for sharing infos..

Stock CPU governor settings

I would like to know if someone that is running stock ROM with Stock kernel and rooted to check what the governor and governor settings are
So, I have an Amazon ads enabled G4 that I got from a friend. While using CPU-Z I noticed that, at least what the app shows, is that four cores are always on, and two more turn on as needed. While the four that are always on are clocked at 1.21 gHz... We'll call these four "battery efficient" cores, it seems the other two that turn on as needed are clocked at 1.44 gHz or the "power" cores. At least for me, there is a total of four "power" cores but the extra two never come on.
In an attempt to save battery, I turned on the android battery saver on. With this enabled, the "power" cores turn off and do not come on at all. The four "battery efficient" cores stay on and what a difference between battery saver enabled compared to battery saver disabled. I also noticed all of these eight cores to have a minimum speed of 806 MHz.
So, I've been able to achieve over 6 hrs of Screen On Time. I could only dream of when I used my Moto X Pure Edition. I'm trying to figure out why the 808 while based off A53s does not achieve said Screen On Time, while a far inferior processor is able to do this with no problem.
Obviously I cannot root the phone to check it myself. Anyone care to discuss?
Sent from my Moto G (4) using XDA-Developers mobile app

Wanted to see if anyone is willing to share stock governor settings.
Sent from my XT1575 using XDA-Developers mobile app

Just need stock governor settings, from anyone that has an unlocked bootloader and has been able to root this phone.
Sent from my XT1575 using XDA-Developers mobile app

I know it's extremely hard to figure out what the stock governor and its stock settings are, however, I was hoping since we have so many great minds here at XDA that thus would be an attainable request ???
Sent from my XT1575 using XDA-Developers mobile app

So, if you have a rooted moto G4, would be greatly appreciated if you share them stock governor setting and anything related to the kernel
Sent from my XT1575 using XDA-Developers mobile app

cerobles1 said:
So, if you have a rooted moto G4, would be greatly appreciated if you share them stock governor setting and anything related to the kernel
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I'm not rooted and I can't load the app right now but can't you see the settings even though you can't change them on a non-rooted phone?

I've tried, but I have not found a way or an app that shows the actual governor parameters settings. It only shows what governor is being used. @Tel864 do you know something I don't???
Anyone else that has their g4 rooted please help.
Sent from my XT1575 using XDA-Developers Legacy app

cerobles1 said:
I've tried, but I have not found a way or an app that shows the actual governor parameters settings. It only shows what governor is being used. @Tel864 do you know something I don't???
Anyone else that has their g4 rooted please help.
Sent from my XT1575 using XDA-Developers Legacy app
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I have the Amazon variant rooted and unlocked... what field in what app are you looking for? the Scaling Governer says "Unknown"

bigunwhistle said:
I have the Amazon variant rooted and unlocked... what field in what app are you looking for? the Scaling Governer says "Unknown"
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@bigunwhistle what I'm referring to is any application that allows you to control the governor. Is it better to siwtch to PM in an attemp to not clutter the thread???