Related
hi all
im using DooMKernel for a while and when i set the maximum frequency for any speed faster than [email protected], when the cpu is on heavy load or when the phone temperature is rising above some threshold (i think it's around 45 degrees, not sure tho) - there is an automatic down throttling to stock valus (max 1.5ghz) and nothing will recover it back to modified values unless reboot or reapplying the OC via SetCPU or equivalent.
now, i know there is a 'thermal control' sort of mechanism, and i also know it probably resides both on os level and sony framework, but i wish i could disable it somehow.
i know there is a great risk of frying my XZ, but im only intend to overclock for short terms and not for a main daily usage.
a quote from DooMLoRD's post on the subject:
It has been observed that the overclocking sometimes reverts back automatically to stock settings especially after heavy CPU load and if the device heats up.
I think have found why this happens:
Android OS level
there is a binary called: /system/bin/thermald which writes lower CPU freq values to the CPU sysfs interface if the device starts heating
there is also an app "Overheat Control" which i suspect is doing something similar
Kernel level
there seems to be some sort of fail-safe in place "msm_dcvs" which resets the CPU to 918Mhz or 1026Mhz or 1512Mhz
could also be some other things i am still searching
now there are ways to circumvent these issues but given the risk of the damage associated with overclock for long time i think its in our best interest to not screw with these fail-safes...
Click to expand...
Click to collapse
if someone could plz explain how to totaly disable thermal control - it would be much appreciated.
if you totally disable them your Smartphone will shutdown every time you reach....(cant remember! think it was 75°C) SoC Temp! and you will reach that kinda fast!
i heard that the huawei p9 has their unique overheat protection feature which if the phone gets hot the phone will lower its performance level. is there any way to disable this, my phone gets slow even if its not that hot. i cant play games for too long because it lags after a few mins of playing. i hope huawei makes this feature optional
rhaegon36 said:
i heard that the huawei p9 has their unique overheat protection feature which if the phone gets hot the phone will lower its performance level. is there any way to disable this, my phone gets slow even if its not that hot. i cant play games for too long because it lags after a few mins of playing. i hope huawei makes this feature optional
Click to expand...
Click to collapse
Its not a unique feature of the P9, all the CPUs (meaning Desktops computers, Laptops computers, Phones, Tablets, etc.) and also all GPUs (Nvidia cards, AMD cards, MALI, Rouge, etc.), but in general all electronic components will lower their performance if they get too hot. This is called "Thermal Throttling". All components have a maximum working temperature, if you get close to that temperature you might experience glitches or artifacts, nothing permanent, but if you get past the Maximum temperature, you will experience heavy glitching and artifacting, crashes and heavy instability of the system, causing permanent damage too.
So to answer your question, no, you cannot disable the overheating safety feature, and there will also won't be an implementation of a switch for this feature, simply because it would kill your device.
The only solution is to better cool the phone, or reduce the heat, the first is not really a great solution, the second one would require downvolting/downclocking both the CPU and GPU, both of which require a Custom Kernel. As of right now, there are none, so you are stuck the way you are.
noki57oo said:
Its not a unique feature of the P9, all the CPUs (meaning Desktops computers, Laptops computers, Phones, Tablets, etc.) and also all GPUs (Nvidia cards, AMD cards, MALI, Rouge, etc.), but in general all electronic components will lower their performance if they get too hot. This is called "Thermal Throttling". All components have a maximum working temperature, if you get close to that temperature you might experience glitches or artifacts, nothing permanent, but if you get past the Maximum temperature, you will experience heavy glitching and artifacting, crashes and heavy instability of the system, causing permanent damage too.
So to answer your question, no, you cannot disable the overheating safety feature, and there will also won't be an implementation of a switch for this feature, simply because it would kill your device.
The only solution is to better cool the phone, or reduce the heat, the first is not really a great solution, the second one would require downvolting/downclocking both the CPU and GPU, both of which require a Custom Kernel. As of right now, there are none, so you are stuck the way you are.
Click to expand...
Click to collapse
thank you for your response, but my p9 antutu benchmark score is 99k to 65k real quick when performing the 2nd try. isnt that too much? btw when i downclock my phone does it reduce the overheating but still give the same performance?
rhaegon36 said:
thank you for your response, but my p9 antutu benchmark score is 99k to 65k real quick when performing the 2nd try. isnt that too much? btw when i downclock my phone does it reduce the overheating but still give the same performance?
Click to expand...
Click to collapse
Yes, that is a huge drop, but mine behaves similarly. When you downclock your phone you reduce the clock of the processor, which means it needs less electricity to work, which also means that it generates less heat. But reducing the clock of the processor means reducing its performance too, so no, it wouldn't keep the same performance.
noki57oo said:
Yes, that is a huge drop, but mine behaves similarly. When you downclock your phone you reduce the clock of the processor, which means it needs less electricity to work, which also means that it generates less heat. But reducing the clock of the processor means reducing its performance too, so no, it wouldn't keep the same performance.
Click to expand...
Click to collapse
i havent seen any phone that lowers its brightness when overheating, but the p9 does this and then lowers its performance sometimes even if my phone isnt that hot, it looks like a feature to me but im not sure, i hope that this is really a feature cuz if it is, theres a chance to fix it
Its any chance to make all 8 cores working?With root and some script will be possible?
They do under heavy loads. A57s pressure the battery so much and heat without cooling if work continuously. I heard A73s work continuously like A53s.
@Oveana cores got disabled on nougat and that's true!! We can't deny this!! Enabling 6 cores by default as in MM would be soo great or leaving a toggle to enable device performance to use 6 cores is a better idea which we CAn expect in future updates!!
Still no solution??
@Pwruser Its verry annoyng ,SONY DO THE WORST work ever and a fraud Maybe devs can modify kernel to make all cores to work
Get back to MM!! That's all u can do for now....Or flash a custom kernel If u r not on warranty!!!
Big cores work like mm
https://ibb.co/geGYiv
All cores are working with my Sony Z3+ with Nougat .376. By default, only 4 cores run with min frequency, other cores will start running only if there is load, it is for saving battery. You can check with "Kernel Editor" app (rooted only).
flash androplus kernel and enjoy 8cores!
@yxtl there's your answer,
also: having all 8 cores active on max performance lets the device run into thermal limit FAST,
thus ==> lots of throttling, performance goes down, lower than snapdragon 808,
do you REALLY want that ?
Just observe what the big cores do once you raise load on the device ...
And that changes things exactly how ?
Explain ?
Is there a difference in behavior of hotplug ?
(I'm curious)
Thx for answer I run some testes myself ,and A57 cores are not complete disabled ,just need more pressure to work,I asked to sony support and i got same answer
It's highly recommended to use together with my kernel in this thread
Today I'm gonna provide a small tweak after days I experienced on XZ. I notice that our XZ has some issues which is come from bad userspace settings. This tweak aims to improve a little battery usage, better memory management and more power (meaning more heat).
What have I done:
Remove cpu-boost parameter. It's too useless to boost cores on input event, specially big ones. Minimun frequency of small cores are powerful enough to handle UI reponsiveness, boosting them is just wasting power consumption and increase heating.
Reduce input boost ms to default 40ms.
Set memory parameters. Run set memory function for msm8996 devices, it will turn on ZRAM and adjust minfree for better multitasking (I noticed that apps got redraw a lot w/o this).
Optional: tune thermal-engine.conf for more performance. Device should be heater but I still keep it in safe zone. This tweak is just for who prefer performance w/ a little hotter device.
Update:
Remove cpu-boost paramenter for small core, tune thermal-engine for more performance
Download:
In attachments.
Install:
Flash via TWRP.
Target firmware:
41.2.A.7.35/53
It should/maybe work on other firmwares, do at your own risk, just remember to take a system backup.
Thank you, it's valid to marshmallow ?
Enviado desde mi F8331 mediante Tapatalk
Tested working on Nougat 41.2.A.2.223
The device feels smooth as f***
Awesome tweak
You have my appreciation:good:
I like the thermal engine changes. These are similar to what I had before I had to remove root yesterday. You can still go a bit higher it's fine even in direct sunlight and hot days. (I stopped at 78°C)
Also something I prefer as advice:
action_info 1593600+1824000+624000000+255+2+0 1478400+1478400+624000000+255+2+0
Is to always have 255 for maximum screen backlight such that the device doesn't turn down backlight in direct sunlight which is super retarded. Doesn't really increase the heat anyways.
Too sad I can't run these tweaks anymore. Now Pokemon Go runs like crap again. T_T
Got my XZ ran a lil bit laggy today, but too lazy to re-flash. Then I found this tweak just right in time, now the laggy has gone away. Many thanks
Hi, can be used together with deeznuts tweaks?
Will there be any updates for Oreo? I love this mod so much
Is there anything I can do on a new galaxy note 4 to prevent the emmc issue happening in the first place?
There was some talk about preventing overheating?
ghostwheel said:
There was some talk about preventing overheating?
Click to expand...
Click to collapse
Do I need to lower the cpu ghz? Or run some kind of app or program?
Redrainz said:
Do I need to lower the cpu ghz? Or run some kind of app or program?
Click to expand...
Click to collapse
It might help to lower the CPU speed, but you need access to root and an app to tweak the values.
Avoid gaming which is very demanding on GPU and avoid gaming for long periods of time.
Search also in the Snapdragon forum a good kernel.
Also turn off the fast charging, this can heat too much the phone.
I created a script here. It works very good, it monitors the battery temperature AND all the CPU cores temperatures, and will automatically throttle the phone if temps are too high. You can even kill some apps if the temps are to high (not yet implemented).
The difference with Samsung DVFS or integrated temperature management of kernels is that this one monitors almost all CPU sensors and also the battery, all in complete combination, and it can be easily tweaked (rather than modding a kernel). No battery hog. You can enable USB fast charge, game, etc it will still prevent overheating.
Here is the solution to eMMC error
Hello everyone, I was pretty tired of the eMMC error, and I created a script that completely annihilate this error. This error is due to the phone heating up, and the fact that custom kernels (maybe even the original kernel) don't read the...
forum.xda-developers.com