Develop Bugs

What does quad core control do?

Hey folks everyone on here is praising about the quad core control feature in the battery settings, other then the fact it saves your battery, how does it function? I have it toggled on first time using it. I've Google it and no luck. If anyone knows please share. Thanks.

Where in the battery settings u got this option?

joshofali said:
Where in the battery settings u got this option?
Click to expand...
Click to collapse
Go to settings > battery... (my settings is in list view so it might be easier to find then tab view)

I am also looking for what it do?
Sent from my LG-E980 using xda app-developers app

It puts your un-needed cores into a deep sleep when not needed faster... it's like power saver vs performance mode.
If you want to physically see what it does I suggest this.. download an app that lets you see the state of each of your cpu's like, CPU-Z. Turn quad core off open cpu-z and look at the start of your cpu's, try pulling down your notification bar or volume up and down, and take note of you cpu states and how long they stay that way...now turn quad core optimizion on and do the same. You should notice a difference... with quad core on three of your cores will go into deep sleep quicker thus saving your battery. I personally LOVE quad core optimizion.
Hope this was helpful..:thumbup:
When the f*ck did we get ice cream??

Thanks man summed it for me, I personally can't tell the difference in performance.
Edit: performance as in speed, as in battery life OMG wow!

I think there's no quad core option on F240k or Korean version
How can I enable it?
Can somebody help?
Sent from my LG-F240K using Tapatalk 4

magicriggs said:
Hey folks everyone on here is praising about the quad core control feature in the battery settings, other then the fact it saves your battery, how does it function? I have it toggled on first time using it. I've Google it and no luck. If anyone knows please share. Thanks.
Click to expand...
Click to collapse
When on, this option allows the cores to power down and perform at a lesser output in order to save power. When off, the cores will fire up and perform at optimal level with higher output. It's basically a battery saving feature.

For e988 indonesia quad control on mean only 2 core active..core 0 and core 1...never see activities on core 2 and 3...become dual core ...
See with cpu-z and play q internet and q video
Sent from my LG-E988 using xda app-developers app

magicriggs said:
Hey folks everyone on here is praising about the quad core control feature in the battery settings, other then the fact it saves your battery, how does it function? I have it toggled on first time using it. I've Google it and no luck. If anyone knows please share. Thanks.
Click to expand...
Click to collapse
It uses different governors, like "powersave" in quadcore turned on, and "on-demand" in quadcore turned off. And those governors not handmade but optimized directly by Qualcomm therefore work better than CyanogenModes ones
joshofali said:
I think there's no quad core option on F240k or Korean version
How can I enable it?
Can somebody help?
Click to expand...
Click to collapse
No way. Maybe new update or 4.2.2 will give it to us

Here's the different
Playing same games with Off and On Quad Core control

meld said:
Here's the different
Playing same games with Off and On Quad Core control
Click to expand...
Click to collapse
Well, impressed. But you didn's say, was gaming with Quad control any worse than w/o? some stutters, lags, or nothing different?

Billy Madison said:
Well, impressed. But you didn's say, was gaming with Quad control any worse than w/o? some stutters, lags, or nothing different?
Click to expand...
Click to collapse
No different, but in case this is light game.
If i play high graphic games with or without quad control the result is same.
CPU will always stick as high as possible

It turns processor to dual core.
LG-E986 cihazımdan Tapatalk 4 ile gönderildi

[Q] mtk6582(quad core 1.3gHz) cpu heating up...

hi guys i have a note 3 mediatek device (mtk6582) and when i play games or just using it for more than 20-30 min...it gets really hot, i mean really hott(especially when i'm playing games)
and i think that it may be 1 of the 4 pocessors(cpu2 or cpu3)...i have found apps to disable them but they enable again automatically.(im saying these cores because most of the time they are not active on normal use, but when i playing game they automatically enables)
but i also think that it could be the battery that is not the best quality...and i need someone to tell that if the battery is not that good can this heat up the cpu.
oohhh and if anybody knows any other way to disable the cores ...so i could find if they really heats up the cpu or not...i would appreciate if you tell me how.
THANK YOU.

What does this have to do with paranoid android?
Sent from my Nexus 5

i dont know...xda forums moderator( justmpm )moved this here

Only two of four cores

I've noticed in numerous battery monitoring programs, that only two cores, of my quad core processor are active. Constantly. Just wondered if this is common? Do the other two cores kick in only on certain functions? Gaming, etc? Never had a quad core anything, so though I am computer knowledgeable, I find myself stuck on this quandary. Thanks for reading, and possibly answering me.
--=={BSnapp} ==--

BSnapp said:
I've noticed in numerous battery monitoring programs, that only two cores, of my quad core processor are active. Constantly. Just wondered if this is common? Do the other two cores kick in only on certain functions? Gaming, etc? Never had a quad core anything, so though I am computer knowledgeable, I find myself stuck on this quandary. Thanks for reading, and possibly answering me.
--=={BSnapp} ==--
Click to expand...
Click to collapse
Its normal dont worry. Do you have a custom kernel installed? Im guessing you dont know what that is lol

I am rooted, with stock rom/kernel.. Thanks for replying. I actually figured it out a few hours ago. I pulled up a cpu program and watched the other two cores come to life when testing...
--=={BSnapp} ==--

Glad you figured it out
Sent from my Nexus 7 using xda premium

Overclocking of LG G4

Hi everybody,
I want to know if we can overclock our Snapdragon 808 to 2GHz (ARM A72 cores) with a modified kernel.
Also, If somebody is going to work on this challenge.
Thanks!!

Androsesp said:
Hi everybody,
I want to know if we can overclock our Snapdragon 808 to 2GHz (ARM A72 cores) with a modified kernel.
Also, If somebody is going to work on this challenge.
Thanks!!
Click to expand...
Click to collapse
A57 cluster, probably yes. I'm also working on a kernel, but I intensely dislike Overclocking because it isn't all that useful. The key to performance is with optimisation, not with raw power. So I'm most likely not going to include it, sorry.

What about underclocking and/or undervolting?
I think performance is good enough as it is, but would like to get better battery life.

I would like to be able to undervolt in order to relieve the bugging high temp warning. This phone rarely uses max performance. So, overclocking is not really a priority. Maybe a custom hotplug.

Crappy cpu. No point messing with it.
Sent from my A0001

GUGUITOMTG4 said:
I would like to be able to undervolt in order to relieve the bugging high temp warning. This phone rarely uses max performance. So, overclocking is not really a priority. Maybe a custom hotplug.
Click to expand...
Click to collapse
Hotplugging has been dropped not long ago. You'd basically need to reinvent it. Plus it costs more power than it would save

And what about undervolting to prevent excessive heat, @mythos234?

yea i guess undervolting is the only benefit here coz 2 ghz wont be hard to achieve but getting that overheating msg sooner aint worth it...
next thing u know is accessory back plates with mini fans to keep the phone cool...
seriously tho what good is the extra power for ? the phone is already fast with the correct setup (not that i saw any lag when it was stock)

anyone knows how to see the cpu binning in this phone?

oile said:
And what about undervolting to prevent excessive heat, @mythos234?
Click to expand...
Click to collapse
Excessive Heat?

mythos234 said:
Excessive Heat?
Click to expand...
Click to collapse
A number of people have gotten over-temperature messages, sometimes with the phones even shutting down.
This has been reported with using navigation, I believe, and I know people have reported it when shooting video. High screen brightness is likely a contributor. But there are examples of the phones running too warm.
Personally, I'd be more interested in cooler running, and longer battery life, rather than increased peak performance. So underclocking, if anything.

Well, the overclocking is not necessary, but is an opportunity to know the limits of the chipset. Moreover, with it we could know if we can make undervolting to our phones and make it more battery efficient with an underclocking kernel, when we need it.

RedOCtobyr said:
A number of people have gotten over-temperature messages, sometimes with the phones even shutting down.
This has been reported with using navigation, I believe, and I know people have reported it when shooting video. High screen brightness is likely a contributor. But there are examples of the phones running too warm.
Personally, I'd be more interested in cooler running, and longer battery life, rather than increased peak performance. So underclocking, if anything.
Click to expand...
Click to collapse
Happens to me too when gaming. The problem I observe is that Indeed, it is not excessive heat. But LG thinks otherwise.
You can actually underclock using Kernel Auditor and disable cores. Unless you meant Undervolting.

mythos234 said:
Excessive Heat?
Click to expand...
Click to collapse
Wanna check out periscope and comment back ? Atleast I know that app will push the phone to its limits.
Sent from my LG-H818 using XDA Free mobile app

Currently using Kernel Adiutor to disable both A57 cores and the phone screen does not heat up like before... Battery life has improved from what i saw yersterday. Continuing testing today. Only problem i have is the damn phone will enable one of the A57 cores after a while which i dont like. I need my settings to stick.
Any Kernel Dev know which files are causing this? Tab 3 had something like this but a couple of files changed solved the non sticking settings on cpu.
Overclocking/underclocking sure but just disabling cores would work for most.
Sent from my LG-H815 using Tapatalk

mythos234 said:
Excessive Heat?
Click to expand...
Click to collapse
lol, you're funny.

marcadam said:
lol, you're funny.
Click to expand...
Click to collapse
I haven't had any popups or heat related reboots, so I was wondering what the matter is here.
On every phone I see complaints over heat so I wondered if something is to it here or if it's the usual. And if there are overheating warnings and shutdowns, then there might be indeed something in the bush.

Try charging your phone in the car whilst using google maps to get to an important meeting, and then take a call just for good measure............and boom, there you have your own little meltdown.

marcadam said:
Try charging your phone in the car whilst using google maps to get to an important meeting, and then take a call just for good measure............and boom, there you have your own little meltdown.
Click to expand...
Click to collapse
That happens on every phone I ever had though. It's advised to not use a device while charging at all, so if you stress it to 120% while charging, of course it heats up..

@mythos234 is a pleasure to have you here (speaking as xiaomi mi2s owner too xD)
What Temps do you reach using cpu intensive apps?

Nexus 5X only using 4 cores?

Like many people here and a few reviews have pointed out the nexus 5X seems to get overwhelmed by some day to day task and multitasking. So today as my phone was struggling to load a web page in chrome and stream some Sirius xm over Bluetooth I decided to try and see how heavy the load on the CPU. I fired up cpu z and according to the app it was under a heavy load and the 4 A53 cores were maxed out at 1.44ghz and the 2 A57 cores were stopped! So I rebooted figuring it must have been a bug and nope the A57 cores where still stopped. Anyone else noticing this or is it just my device?

Not seeing that behavior, although it's possible cpu-z needs an update or is buggy; after launching the camera to generate some load, it showed all 6 cores as being [email protected] until I restarted it.

agentdr8 said:
Not seeing that behavior, although it's possible cpu-z needs an update or is buggy; after launching the camera to generate some load, it showed all 6 cores as being [email protected] until I restarted it.
Click to expand...
Click to collapse
the snapdragon 808 uses the bigLittle architecture.
That means there are 4 low powered cpus, and 2 high powered cpus.
Most of the time, only the 4 low powered cpus are in use.
When the phone needs more performance/power, the 2 other high powered cpus kick in.
So what you are seeing is normal. Most of the time, the phone is only using the 4 little cpus.

dwang said:
So what you are seeing is normal. Most of the time, the phone is only using the 4 little cpus.
Click to expand...
Click to collapse
I don't think cpu-z should show all six cores as A53s though, only the little 4. That's the part I think might be a bug.

agentdr8 said:
I don't think cpu-z should show all six cores as A53s though, only the little 4. That's the part I think might be a bug.
Click to expand...
Click to collapse
trickster mod works, I see the 2 big cpus kick in all the time, but it requires root.

So after trying a bunch of different things out looks like running a benchmark will someone's get all the course up and running but not all the time the first screen shot is with 4 cores and the 2nd is with all 6 both seem pretty low to me