Develop Bugs

Higher temperature on Android 5.0?

Hi Everyone,
Just wondering how your Nexus 7 runs under the new OS? I notice my device getting higher temperature than before, especially when playing some games. For example, with CPUTEMP and Smash Hit, CPU's temp was around 50-55C on Kitkat but now it is 65-75 on Lollipop.
Would be great if someone can run the same test and see if you get high temperature on this game.
Thanks

I can attest to this myself. I use the same app (on a N5 and N7) and I've noticed that the feel in the hand, while doing normal stuff with the same usage pattern, seemed hotter than normal. So I launch the CPUTEMP app and run the overlay, put the N7 to sleep for 15 minutes to idle. Temp starts around 36 C when first turning on the screen, then it ramps up to 44 - 50. Then while actually using the device, (e.g. surfing the web, email, basic stuff) the temps will go up to the 50s and 60s easily. If I leave it at rest on the homescreen after using the tablet, it idles around the low to mid 40s. While video chatting online with someone (hangouts / skype / etc) it will ramp up to 70s, then 80s, and finally cap out at 95 C. (5 degrees before S4Pro SoC maximum?) A video chat will last 2 - 2.5 hours on a fully charged battery, and the heavy SoC throttling affects the frame rate / responsiveness of both my front / back camera preview during vid chat and the entire OS. Downloading an app or two brings the temp 55 - 61, and then installing them (due to AoT compile) from 61 to 72.
The same goes for my N5 also on Lollipop, to a lesser degree, but nonetheless, it runs higher average temps than I noticed while running KitKat. Both devices appear to drain battery quicker on Lollipop, especially during use. That's not even considering LTE / mobile data use, since these days I'm here at home using WiFi all the time.

lpachuong said:
Hi Everyone,
Just wondering how your Nexus 7 runs under the new OS? I notice my device getting higher temperature than before, especially when playing some games. For example, with CPUTEMP and Smash Hit, CPU's temp was around 50-55C on Kitkat but now it is 65-75 on Lollipop.
Would be great if someone can run the same test and see if you get high temperature on this game.
Thanks
Click to expand...
Click to collapse
Yes. You are correct. Even i face the same issue. The device gets heated even on playing candy crush / angry birds which was not the case with kitkat 4.4.4.

[Q] Normal/Excessive CPU temperature for S4 ?

Hi,
I'm using a Canadian Galaxy S4, SGH-I337M.
Rooted, running on Liquidsmooth 4.4.4 ROM. Also has Ktoonsez kernel. It is currently undervolted+underclock a bit, and is stable (I could overclock it, but I don't. No need).
Been wondering for a long time about the operating CPU temperatures of the Galaxy S4... Never had the possibility to do testing with CPU temperatures before. I do have a LG P500 that I have overclocked a ton in the past, still work just fine, but the LG P500 is old and do not support viewing CPU temperature, so it's my first time experimenting with that.
How hot would be too hot for this phone? There are several opinions, but never figured out if I... "minimize" the risks of my actual temperatures, for some reason. My laptop CPU throttle at 85 celcius for instance. While it's a phone, it's completely different.
At night, while connected to charger, it would be pretty cool, at 25-30 degrees when I wake up;
I would say that most of the time, my CPU is running at 50 celsius, and rarely ever exceed 65-70 under normal use, or even gaming. Plus, the CPU is undervolted and a bit underclock, so I do feel like it run cooler than usual.
Quoting Meowmix from Rogers forums:
It varies on the usage of everyone else & how you handle the phone ( cases & such). Also if you are in extreme heat or having the device in direct sunlight.
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Click to collapse
So, the case does matter? I do have that Otterbox case which is pretty tight and enclose the phone pretty well, I would believe that the phone would get less.. air.. but I mean, it's just a case, didn't thought it would affect much..?
Quoting Ahmed from AndroidCentral Forums, I would say that I have a quite similar situation.
No, just when i ran AnTutu when it runs the 4 cores at the maximum frequency the temperature is between 80-91c, and at normal use while surfing the internet the temp. 45-55c and the battery reaches 38c after an hour of continuous using.
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I CAN reach 80-90 celsius, but only if I really want it to happen. 38 celsius for the battery is also correct, I never exceeded 41 degrees yet, on any Android phone (I don't know the dangerous battery temps.. But when I reach 40 degrees I try to put it down as fast as possible). With benchmarks, usually at the max frequency, or testing my undervolt with Stability Test, I CAN reach 80-90 celsius, which look really high. Additionally, I would remind that I don't overclock, and the CPU is undervolted so seems a bit cooler.
So on AndroidCentral, this is the reply Ahmed got, from "CR6" user:
I had to use my temp converter to look up & convert them to Fahrenheit. 80-91c equates to 176-195 Fahrenheit and that's extremely dangerous. These temps will not only physically burn you, but will fry your phone if you continue using it at these temperatures. 45-55c equates to 113-131 degrees Fahrenheit, and that is normal under really heavy usage. Optimally, you'd like to keep it at 38-45c. You may have a defective device if you regularly see temps over 80c and I would advise checking on a replacement.
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Click to collapse
THAT dangerous? Well, I don't phisically feel the heat - I do feel it, but since I have that phone case, that doesn't hurt at all. But like I mentionned, I never reach 80 celcius or more unless doing benchmarks. Usually I never exceed 65-70. But still it left me wondering - Why does Android allow such high temperatures in first place? Isn't the system suppose to shut down at some point in case of danger, and when?
I've also experimented with thermal throttling in the Ktoonsez kernel, and the throttling values of the ROMs. Touchwiz Stock ROM with DVFS disabled, seems to throttle at 80 celsius, look decent. Liquidsmooth AOSP ROM, stock kernel, does not seem to throttle at all (Huh)! Once, and that was exceptionnal, I've reached 100 CELSIUS using Wifi, connect to a charger after like 2 hours, room temperature was very warm, was not surprised, but when I noticed I reached 100 CELSISUS, I was WOAW, I should shut down. I did reached 100 degrees again, using Stability Test at max frequency after a few minutes. Needless to say I manually stopped the test, because I had no idea how much heat the phone could handle...
So been aware of this, "Ktweaker" app, for the Ktoonsez kernel I use now, does have a thermal throttling option, but I wondering which thermal value should I enter for best "performance"? Default was 70 degrees, I set mine at 80, I've heard of people even putting 90 for the same kernel. Besides, maybe I worry about it too much, because in no way the phone should exceed 70 degrees celcius under normal use anyway, or even gaming. Only way to reach insane temperatures would be benchmarking/stress testing...
Still, first time seeing these CPU temperatures also. I've overclocked my LG P500 several times in the past, dealing sometimes with random reboot, so make stability/overheating questionnable, but the device did not supported seeing the actual CPU temp. So I don't know which temperatures would be considered normal - probably, nothing above 75-80, correct (For the Galaxy S4, actually)?
(Jason) said:
(From another thread)
I do know it can run up to about 180 before hitting critical and shutting down
Edit: its about a 75 degree ambient temp where im at.
Tapped² from my I5³5
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At which point is the device supposed to shut down? Is that in the kernel or a hardware CPU trigger? Because heck, I've reached 100 degrees 2 times, I mean, how far/close was I from a shut down? I'm quite surprised.
I've also read of people complaining of S4 overheating, especially maybe after it was released - It's possible that it heats up more than other phones, but honnestly I have no idea.
Thanks for your answer =)

Going thru this exact same thing. Same temps. This is not normal. Mines just started happening one day. Idk how or exactly when

Kennii said:
Going thru this exact same thing. Same temps. This is not normal. Mines just started happening one day. Idk how or exactly when
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Click to collapse
Thank you for your answer;
Used to think some temps look normal to me - Besides, since I've undervolted last week, it's stable and run cooler, maybe better battery as well. I never can exceed 70 degrees even when gaming I supose..
I can reach 80 degrees, but only when benchmarking or stability testing, so I'm not worried, but I do wonder;
I've reached 100 degrees 2 times, once while doing a stability test at 1,89 GHz for like 5 minutes (or more), I had to manually stop. And last time was long ago, watched YouTube videos in bed, like under covers ha, maybe as well connected to charger. Not even surprised I've reach such temps after a while in such conditions, under covers, just no air (Used to do it with my LG P500 too. While I never was able to see the CPU temps on this device. Even then, LG P500 still works, but guessing build quality was much better). Needless to say I was like WOAW when I've noticed 100 degrees, and just put the phone down. Probably went from 80 to 100 quickly, didn't noticed that fast. But yeah, that 100 degrees was.. almost expected under such conditions.
I just really wonder about thermal throttling. Like I've mentionned, stock Touchwiz with DVSF disabled seems to throttle at 80, while KTweaker app for a different AOSP kernel have the default temp limit set to 70. Liquidsmooth ROM, AOSP, does not seem to have a throttling point, since I've reached 100 degrees 2 times with it (Don't intend to test 100 degrees again, huh). What would be the maximum ideal temp for throttling? Maybe I think about it too much, since under normal circumstances, I never exceed 70 degrees, besides benchmarks.
Also wondered at which temp is the phone supposed to shut down... 120 degrees?! XD Because 100 seems ridiculous to me, probably is, but yeah, my laptop throttle at 85, and it's a laptop (Intel Core i3) - Can't imagine a phone going any higher without any risk.
Thanks for the feedback

Mi5s starts throttling at low temperatures

Hello. I have noticed that my mi5s has some lag while playing asphalt 8 even at medium settings. After doing some benchmarks with 3DMark I realized that there is a drop in performance at relatively low temperature.
At "Ice storm unlimited" I have a score around 30,000 when the cpu is cool. However when I hit a 36 degrees of Celsius I am around 27,400. Furthermore, if the temperature increase at 39 Celsius , the performance drops even more and 23,500. This gets even worse when I hit 40+ Celsius where the score drops under 20,000 and if I semi-covered it with a cloth to reach higher temp it gets around 16,600 at 45 degrees of Celsius. After that it need to cool down to 33 degrees of Celcius to restore its performance
Needless to say that these temperatures are very easy to reach when you are playing a game. Has anyone noticed something similar? Any suggestions?
I have the 3/64 version with the 7.7.20 developers. Same issues were faced with the 7.7.6. . I have not tested in depth with the global rom but I think I had similar issues (it was only for a day). The room temperature is around 30 degrees of Celsius.

Antretng said:
Hello. I have noticed that my mi5s has some lag while playing asphalt 8 even at medium settings. After doing some benchmarks with 3DMark I realized that there is a drop in performance at relatively low temperature.
At "Ice storm unlimited" I have a score around 30,000 when the cpu is cool. However when I hit a 36 degrees of Celsius I am around 27,400. Furthermore, if the temperature increase at 39 Celsius , the performance drops even more and 23,500. This gets even worse when I hit 40+ Celsius where the score drops under 20,000 and if I semi-covered it with a cloth to reach higher temp it gets around 16,600 at 45 degrees of Celsius. After that it need to cool down to 33 degrees of Celcius to restore its performance
Needless to say that these temperatures are very easy to reach when you are playing a game. Has anyone noticed something similar? Any suggestions?
I have the 3/64 version with the 7.7.20 developers. Same issues were faced with the 7.7.6. . I have not tested in depth with the global rom but I think I had similar issues (it was only for a day). The room temperature is around 30 degrees of Celsius.
Click to expand...
Click to collapse
If you're okay with the high temperatures then you could disable all the CPU thermal throttles from any kernel manager app, though you need to be rooted.
Sent from my MI 5s using Tapatalk

abirftw said:
If you're okay with the high temperatures then you could disable all the CPU thermal throttles from any kernel manager app, though you need to be rooted.
Sent from my MI 5s using Tapatalk
Click to expand...
Click to collapse
I was thinking something similar but I do not want to disable it fully but just increasing the threshold by 2 or 3 degrees of Celcius. I am rooted but I am not sure how I can do the modification. From some quick search that I have done there should be a file named thermal-mplampla.conf (I do not remember the exact name) where you can modify it but I am not sure by how much should I change the respective lines for just a 2 or 3 degrees increase.
Anyone that have been playing around with thresholds and have any tips or guide before messing around?

Antretng said:
Hello. I have noticed that my mi5s has some lag while playing asphalt 8 even at medium settings. After doing some benchmarks with 3DMark I realized that there is a drop in performance at relatively low temperature.
At "Ice storm unlimited" I have a score around 30,000 when the cpu is cool. However when I hit a 36 degrees of Celsius I am around 27,400. Furthermore, if the temperature increase at 39 Celsius , the performance drops even more and 23,500. This gets even worse when I hit 40+ Celsius where the score drops under 20,000 and if I semi-covered it with a cloth to reach higher temp it gets around 16,600 at 45 degrees of Celsius. After that it need to cool down to 33 degrees of Celcius to restore its performance
Needless to say that these temperatures are very easy to reach when you are playing a game. Has anyone noticed something similar? Any suggestions?
I have the 3/64 version with the 7.7.20 developers. Same issues were faced with the 7.7.6. . I have not tested in depth with the global rom but I think I had similar issues (it was only for a day). The room temperature is around 30 degrees of Celsius.
Click to expand...
Click to collapse
First of all, that isn't the CPU temperature but the battery temperature. This phone actually has fantastic thermals due to its aluminum back and well placed SOC. No wonder you're getting throttling, you live in 30°C and you're playing games, what do you expect? Every phone on the face of the earth will throttle to that level. Just saying, your CPU is running probably around 70-80°C while playing intense games. So if you continue to play, it will eventually heat up the rest of the phone.
40°C destroys a batteries lifetime and 45°C everyday will reduce your battery within half a year which is why they throttle phones. Hell my One plus 3 in 30°C weather will throttle like crazy and that's the best phone in terms of throttling. Its normal. Stop playing crappy games like Asphalt 8 in 30°C and go enjoy the sunny weather instead.

crzykiller said:
First of all, that isn't the CPU temperature but the battery temperature. This phone actually has fantastic thermals due to its aluminum back and well placed SOC. No wonder you're getting throttling, you live in 30°C and you're playing games, what do you expect? Every phone on the face of the earth will throttle to that level. Just saying, your CPU is running probably around 70-80°C while playing intense games. So if you continue to play, it will eventually heat up the rest of the phone.
40°C destroys a batteries lifetime and 45°C everyday will reduce your battery within half a year which is why they throttle phones. Hell my One plus 3 in 30°C weather will throttle like crazy and that's the best phone in terms of throttling. Its normal. Stop playing crappy games like Asphalt 8 in 30°C and go enjoy the sunny weather instead.
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Actually the truth is somewhere in the middle. I have used an app called "cpu temperature" but if I check the battery temperature it shows exactly the same degrees. So I guess it mistakenly shows the temperature of the battery. Do you have a more reliable app to check cpu temp?
On the other hand, 30 degrees of Celcius is not that high. In the winter usually we do not let the room temperature drop under 20 degrees since we use heating. Nevertheless, I will let it as it is for now and check again after 5 or 6 weeks where the temperature should be cooler.

Antretng said:
Actually the truth is somewhere in the middle. I have used an app called "cpu temperature" but if I check the battery temperature it shows exactly the same degrees. So I guess it mistakenly shows the temperature of the battery. Do you have a more reliable app to check cpu temp?
On the other hand, 30 degrees of Celcius is not that high. In the winter usually we do not let the room temperature drop under 20 degrees since we use heating. Nevertheless, I will let it as it is for now and check again after 5 or 6 weeks where the temperature should be cooler.
Click to expand...
Click to collapse
You need a rooted phone to see actual CPU temperature. The best way to do this is get an app called simple system monitor (blue app icon) and go in temperature zones and you'll find a bunch of sensors there. There's a bunch of them that are for the CPU and you kinda have to figure it out yourself (I don't know exactly which one it is, one of the tz_sensor ones) by running a CPU benchmark and finding the ones that show the highest temperature. If you were to remove thermal throttling, and maxed out the CPU and GPU, you will see your CPU hit around 100-110°C and your phones gonna shut down for protection. And I'm in Canada so 30°C is extremely high haha.

CPU Thottling?

Does the Samsung Galaxy Note10+ (Snapdragon) throttle the CPU to save battery life or manage heat? If so, is there some way to modify that?

Of course there would be a way of doing it, but first root must be achieved

i believe so i keep it on high performance mode at all times

I've only seen this happen if you have either of the power saving moves enabled.

I ran a test with the device set to high performance mode, and there is definitely some modest throttling after the 2 minute mark. Root can't come soon enough.
Results: https://m.imgur.com/a/ySI0LBH
Here are the results of a more intensive test: https://imgur.com/a/3t4o6f3

nwitkin said:
I ran a test with the device set to high performance mode, and there is definitely some modest throttling after the 2 minute mark. Root can't come soon enough.
Results: https://m.imgur.com/a/ySI0LBH
Here are the results of a more intensive test: https://imgur.com/a/3t4o6f3
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Click to collapse
So you want it to overheat instead of slow down? Damn thing says 174 degrees.

Can someone, who has the Exynos version, do the CPU Throttling Test and share the picture, please?

The only rootless setting you can set for it is the moderate power save that fix it to 70%
You need root otherwise.

Every CPU have Throttling. This is about temp. increasing. Have one test in GSMARENA.COM
Flagships vs Gaming phones. After 1 hour hard gaming casual flagships decreasing CPU power on 60, 70 % to prevent overheating. In Gamer phones like ROG or Black Shark decreasing is only around 90%. This is because they have active cooling systems.

propov said:
Every CPU have Throttling. This is about temp. increasing. Have one test in GSMARENA.COM
Flagships vs Gaming phones. After 1 hour hard gaming casual flagships decreasing CPU power on 60, 70 % to prevent overheating. In Gamer phones like ROG or Black Shark decreasing is only around 90%. This is because they have active cooling systems.
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Click to collapse
I agree. But not only gaming devices. For example, Sony Xperia XZ Premium doesn't throttle that much.
I just wanted to see if there is a difference in Throttle on Exynos and Snapdragon.
If someone could do a CPU Throttling Test on Exynos, I would be very happy!

Exynos is horrendous. Just look at gips. Im starting to believe more and more there's something wrong with my device.

Question Should I get the phone cooler for the Red Magic 6.

While playing games my Red Magic 6 phone does get quite warm even with the built in fan. Is the Dual Core Cooler or Pro Ice Dock for the Red Magic 6 worth buying to keep the temps down.
While playing games like Genshin Impact temps can reach somewhere around 37°C to around 40°C on medium settings (or 48°C when playing at max settings)

The typical normal CPU temperatures with mobile devices range between 30 to 35 °C continuous browsing considering the ambient temperature around is close to 27 to 30 °C. When it comes to heavy gaming the temperatures soar at 40 to 44 °C.
Take note that a high CPU temperature is not caused by the CPU itself. Games generally do not put pressure on CPU, but on the GPU. The GPU usage for the 3D HD games are generally very high, and can cause such temperature increase. So yes, that kind of 'GPU' temperature is normal while gaming

jwoegerbauer said:
The typical normal CPU temperatures with mobile devices range between 30 to 35 °C continuous browsing considering the ambient temperature around is close to 27 to 30 °C. When it comes to heavy gaming the temperatures soar at 40 to 44 °C.
Take note that a high CPU temperature is not caused by the CPU itself. Games generally do not put pressure on CPU, but on the GPU. The GPU usage for the 3D HD games are generally very high, and can cause such temperature increase. So yes, that kind of 'GPU' temperature is normal while gaming
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Click to collapse
So is it not worth getting the Red Magic Dual Core Cooler

Deleted member 1890170 said:
The typical normal CPU temperatures with mobile devices range between 30 to 35 °C continuous browsing considering the ambient temperature around is close to 27 to 30 °C. When it comes to heavy gaming the temperatures soar at 40 to 44 °C.
Take note that a high CPU temperature is not caused by the CPU itself. Games generally do not put pressure on CPU, but on the GPU. The GPU usage for the 3D HD games are generally very high, and can cause such temperature increase. So yes, that kind of 'GPU' temperature is normal while gaming
Click to expand...
Click to collapse
Hi there,
May i reconfirm again which temperature is the most concerned part for a gaming smartphone? Is it its cpu or the battery?
I experienced quite frequently overheat issue as cpu temperature could reach 50°c while the battery boost up till 45°c and it boasting rapidly until you can feel the stress when you are gaming in warm surrounding.
Attached is my reference using cpu/gpu meter notification app

imNazreen said:
Hi there,
May i reconfirm again which temperature is the most concerned part for a gaming smartphone? Is it its cpu or the battery?
I experienced quite frequently overheat issue as cpu temperature could reach 50°c while the battery boost up till 45°c and it boasting rapidly until you can feel the stress when you are gaming in warm surrounding.
Attached is my reference using cpu/gpu meter notification app
Click to expand...
Click to collapse
I can only measure the battery temperature on this phone. And it reports that the temps rise from 35°C to 47°C - 50°C. Right now I haven't played anything so temps are really low, but this is the only way I can measure it.