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!!
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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.
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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?
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Excessive Heat?
mythos234 said:
Excessive Heat?
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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.
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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?
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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?
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lol, you're funny.
marcadam said:
lol, you're funny.
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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.
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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?
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.
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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.
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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.
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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
Hello
Lots of G4 devices gets boot loop in time.
warranty fixes it free for now. but even new 1.1 v hardware versions gets bootloop (according to reddit pages)
I think there is no safe device. So how can i avoid this problem ?
According to people this problem caused by overheating, that makes solder weak. then some cpu core connections gets loose and causes boot loop.
My desperate solution is lowerclocking the device. I'm using cpu tuner for disabling 4 cores.
I tested this with benchmarks and games. It seems not overheating.
But cpu performance only 1/3 and there is tiny lags in every app.
If you have better solution, let us now. You are the only hope !
i really like this device and i dont want to buy some mid level f 2.0 camera devices.
excuse my english
orcnd said:
Hello
Lots of G4 devices gets boot loop in time.
warranty fixes it free for now. but even new 1.1 v hardware versions gets bootloop (according to reddit pages)
I think there is no safe device. So how can i avoid this problem ?
According to people this problem caused by overheating, that makes solder weak. then some cpu core connections gets loose and causes boot loop.
My desperate solution is lowerclocking the device. I'm using cpu tuner for disabling 4 cores.
I tested this with benchmarks and games. It seems not overheating.
But cpu performance only 1/3 and there is tiny lags in every app.
If you have better solution, let us now. You are the only hope !
i really like this device and i dont want to buy some mid level f 2.0 camera devices.
excuse my english
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Click to collapse
I think flashing a custom kernel and underclock A57 cores (the bigs). This could prevent overheating, losing very little performance.
in the next few days I receive my phone, i will do that and test what happen. I think that could be a good solution to avoid a bootloop issue.
orcnd said:
Hello
Lots of G4 devices gets boot loop in time.
warranty fixes it free for now. but even new 1.1 v hardware versions gets bootloop (according to reddit pages)
I think there is no safe device. So how can i avoid this problem ?
According to people this problem caused by overheating, that makes solder weak. then some cpu core connections gets loose and causes boot loop.
My desperate solution is lowerclocking the device. I'm using cpu tuner for disabling 4 cores.
I tested this with benchmarks and games. It seems not overheating.
But cpu performance only 1/3 and there is tiny lags in every app.
If you have better solution, let us now. You are the only hope !
i really like this device and i dont want to buy some mid level f 2.0 camera devices.
excuse my english
Click to expand...
Click to collapse
are you under warranty.? if yes keep using it like always if you try to prevent from happening and dont bother running it then disable the cores..
Sorry for my poor english. But something i really want to ask. Help me please.
I've got some problem on my z5 premium dual(6883). I'm not sure if it is problem of my phone or all e6883. Please can anyone help me or tell me?
z5 premium/z5 premium dual are using s810 with 4-a53 cores and 4-a57 cores. But my phone is always using the 4-a53 cores but seldom use a57 cores. Even use a57 cores, just use only maximum at 2. It is so weird. And even the 4-a53 cores are all fully used (usage: 100%), it won't switch to use or active a-57 cores.
So, my question is, can anyone tell me this is my e6883's problem or all e6883's problem?
the second processors usually get ignited ONLY if resources are LOW on the first chipset. running two simultaneously will drain battery!
don't worry! enjoy the device
YasuHamed said:
the second processors usually get ignited ONLY if resources are LOW on the first chipset. running two simultaneously will drain battery!
don't worry! enjoy the device
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Thx for answering me.
But i have still got a question. Just now i'm trying to open snapchat to reply my friends and i figured out my a-53 cores are fully loading about half minutes but the a-57 cores are still sleeping Is it just my e6883's problem? or something else?
I've captured my screen. Please have a look.
(left hand corner is the cpu temperature)
psamtam said:
Thx for answering me.
But i have still got a question. Just now i'm trying to open snapchat to reply my friends and i figured out my a-53 cores are fully loading about half minutes but the a-57 cores are still sleeping Is it just my e6883's problem? or something else?
I've captured my screen. Please have a look.
(left hand corner is the cpu temperature)
Click to expand...
Click to collapse
Use aida64 app to monitor
Hello!
I realized that my 2 big cores only work up to 960MHz and not up to 1824MHz as they should.
I have an H815 model and V20i-EUR-XX android version!
Does anyone know why this happens?
If you jave rooted your device,you can use "kernel aduitor" app for to change these parameters...
I have underclocked my 2 big cores ,it's better for battery-life and my phone use all apps and all games without problem
Loulou-13 said:
If you jave rooted your device,you can use "kernel aduitor" app for to change these parameters...
I have underclocked my 2 big cores ,it's better for battery-life and my phone use all apps and all games without problem
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The thing is that I have stock ROM and I haven't unlocked the bootloader.
Is it possible that LG underclocked the 2 big cores to avoid bootloops?
pavlosargyris said:
The thing is that I have stock ROM and I haven't unlocked the bootloader.
Is it possible that LG underclocked the 2 big cores to avoid bootloops?
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it could be thermal mitigation
as the device heats up the cpus slow down to cool
TheMadScientist420 said:
it could be thermal mitigation
as the device heats up the cpus slow down to cool
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===>maybe ....i eventualy think the same thing ... A thermal protection ???
Yeah but , it seems like they are constantly throttled up to 960MHz and they never exceeded that. Even when it's cool. Cause when it gets warm i can see the fps drop and the cores throttle a lot more.