Questions tagged [cpu]

The tag has no usage guidance, but it has a tag wiki.

Filter by
Sorted by
Tagged with
0 votes
0 answers
19 views

getprop: abi vs abilist

I was reading this blog post on determining the supported ABIs for a phone. It said that, prior to Lollipop, the command is getprop ro.product.cpu.abi whereas, after Lollipop, it's getprop ro....
user avatar
0 votes
0 answers
14 views

Galaxy S8 has no option to show CPU usage

My Samsung Galaxy S8 (SM-G950F) is not showing the developer option to "Show CPU usage". I have turned the "Developer options" on, but scrolling down to "Monitoring" I ...
user avatar
0 votes
0 answers
25 views

How can I reduce the CPU time used by an app?

I have an app that's draining the phone battery and heating the phone when it runs. (Everything is fine when the app isn't in the foreground.) The app itself is a simple game that shouldn't need a lot ...
user avatar
1 vote
0 answers
52 views

How can one find out whether Android is throttling my CPU, e.g. because the temperature is too high?

I'm suspecting that Android sometimes limits my CPU at around 66% when the temperature is too high. I can see that my Geekbench score is much lower than what it should be: Even though my CPU isn't ...
user avatar
1 vote
0 answers
142 views

How to automatically set a CPU governor on boot?

There are apps that can accomplish this task (e.g. "Kernel Adiutor" and others), however they in turn require other apps that can grant them root access to begin with, which is a lot of ...
user avatar
1 vote
0 answers
311 views

Is it safe to turn off kernel panic in Android?

So I'm using a custom kernel that overclocked my CPU and GPU. I turned down the frequency to stock but the big cpu freq can't be set(restore itself to default after some time), causing my phone to ...
user avatar
  • 151
0 votes
1 answer
37 views

Number of cpu cores change in my systrace output

I have 4 cores cpu on my device, but each time I use this command line to genetrate a systrace file : python C:/Users/BJI/AppData/Local/Android/Sdk/platform-tools/systrace/systrace.py freq idle -o C:/...
user avatar
  • 13
1 vote
0 answers
43 views

The powerprofile and systrace outputs are not consistent

I'm generating the PowerProflie file and the Systrace file to get the energy consumption of an Android Application, but I found that the number of cpu cores is different between the two files. I'm ...
user avatar
  • 13
2 votes
0 answers
89 views

Does turning off cpu cores will actually save power?

My phone is using custom kernel that has cpu hotplug in it. The hotplug name is AutoSMP and it has max cpu (big & little) core that should be online option in it. Currently I'm using 3 + 3 core ...
user avatar
  • 151
2 votes
1 answer
75 views

Low CPU use, but HIGH battery use! How?

This file sync app is active for 8 seconds, keeps awake for zero seconds, and yet uses 25-30% of power in a given day. What could an app be doing to drain battery, without showing up as CPU use time? ...
user avatar
0 votes
0 answers
35 views

SoC compute-resource usage monitor for single app

I need to understand the compute resource usage of a compute-intensive app; this includes the CPU (ideally including the core ID), GPU, DSP, AI Engine in the processor (for Quallcom chips). I have ...
user avatar
  • 151
0 votes
0 answers
58 views

How can I tweak my kernel to use all CPUs in my rooted device?

I have Huawei ALE-L21 alice (2015) Magisk-rooted Bootloader-Unlocked Xposed-Installed but it's somehow slower and I decided to tweak my CPU but here is what ES Kernel Manager shows: Also, I can't ...
user avatar
1 vote
0 answers
53 views

Phone overheats after powering on

I've seen this with plenty of smartphones,usually after 1-2 years of use.The phone overheats for a minute or 2 before cooling down,but it's performance doesn't differ from a non-overheating phone that ...
user avatar
0 votes
0 answers
103 views

Help me with correct cpu / rom file

I buy a phone from Ebay, i flashed the phone with wrong rom's in Smart Phone Flash Tool. then i flashed the phone i check the Bootloader off. so i don't flash the preloader. I searched around and i ...
user avatar
  • 11
0 votes
0 answers
150 views

How to find if the processor has hardfloat

My mobile got MSM8953, App, Droid info says: Instruction Sets: armeabi-v7a, aremeabi CPU Features: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm aes pmull sha1 ...
user avatar
0 votes
1 answer
833 views

How to turn off CPU cores on Samsung Galaxy A8?

I need to turn off CPU cores in order to make energy measurements of sets of cpu cores in isolation (meaning that I want to run an application on a set of cpu cores and turn off the cpu cores that are ...
user avatar
0 votes
1 answer
59 views

What's the point of pseudo-big.LITTLE CPU in Nokia 7 plus?

As far as I understand: CPUs can change their frequencies relatively quickly, which can be used for performance-power tradeoff based on load and priorities. big.LITTLE goes further – you can switch ...
user avatar
  • 1,125
1 vote
1 answer
281 views

Uber Driver app using too much resources

So, I'm working a bit as a bicycle courier for Uber Eats. For this, I have to use their app Uber Driver. Problem is, my phone battery (which still holds charge well) is draining very, very fast when ...
user avatar
6 votes
2 answers
938 views

Why does the number of available CPU cores change when an app is closed?

To find the number of cores available to you in Termux you run: grep Cpus_allowed /proc/self/status This number of cores is limited in a similar way to running taskset on GNU/Linux. I am trying to be ...
user avatar
  • 336
1 vote
1 answer
279 views

Why doesn't BOINC use the CPU power fully on my Huawei P9 lite?

I installed BOINC on my Huawei P9 lite. model VNS-L31 build VNS-L31C432B414 Android 7.0 (stock) CPU Kirin 650 RAM 3 GiB I want the phone to run BOINC applications, when fully charged and connected ...
user avatar
  • 493
0 votes
1 answer
146 views

Something eating CPU on Sony XPeria XZ, how to find out what it is?

I have two Sony Xperia XZ devices, bought both very recently in UK as used-with-warranty. One is working great, but the other (which has a 3 logo come up when booting) apparently has something using ...
user avatar
1 vote
2 answers
1k views

Overheating device with random apps spiking CPU usage

Few days ago my phone has started overheating and burning through the battery like crazy. I don't use it too much, and it used to last 1.5-2 days, now it's dead in 6 hours. I've installed System ...
user avatar
  • 11
0 votes
1 answer
2k views

Android CPU usage: What do the red, green and purple bars and the numbers mean?

The Internet as a truckload of myths about this. Today, it is time to bust the myths. When the CPU usage bars that can be enabled in the developer options are being displayed, there is a list of ...
user avatar
3 votes
0 answers
705 views

Restrict CPU frequency from going too high

I got a OnePlus 6 running on Snapdragon 845. The CPU can clock up to 2.8GHz, which is very battery-consuming. I want to limit the CPU clock frequency to, say for example, 2.2GHz or another value I ...
user avatar
  • 7,324
4 votes
0 answers
7k views

CPU usage by app on Android 8

My Samsung S7 is seriously overheated. Battery is being consumed super quickly. I need to see a simple list of applications with percentage of CPU usage. I am desperate because all attempts and ...
user avatar
  • 215
0 votes
2 answers
362 views

Is it possible to estimate the ideal number of CPU cores for Android phones?

I'm thinking that with the way we typically use Android phones, run a single app at a time, fewer faster CPU cores are better than many smaller (slower) cores. Does Android really benefit that much ...
user avatar
1 vote
0 answers
368 views

How to set CPU frequency as early as possible?

What I mean by this question is the sequence of execution of scripts at boot time. Suppose I have this line of script: echo 307000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq I want ...
user avatar
  • 455
1 vote
0 answers
2k views

How do I check if my phone has hardware video encoder?

I own a Samsung j7 2016 and I did some search about the CPU and looked for information tools but I've found codec info but not hardware video encoder info anywhere. If you know any app or adb command ...
user avatar
0 votes
0 answers
3k views

Strange system app called Helper eating too much battery , data , CPU and freezing device

My phone usually work well until recently it turned out that battery gets really hot and camera Section that the phone starts popping that I should remove battery . when I look at battery usage I ...
user avatar
0 votes
2 answers
864 views

Performance troubles with Motorola Moto X Force (Android 7.0)

Since quite some time I am having some peculiar performance problems on my Motorola Moto X Force. Sometimes any interaction (like just opening Chrome for example) takes incredibly long until it ...
user avatar
  • 121
0 votes
1 answer
544 views

Force CPU full with display black

i have a galaxy core duos and minergate instaled for test, however, my H/s in on display stay in 7 and in off stay in 0,5, i instaled overclock app however did not work. how to force CPU full speedy ...
user avatar
  • 101
0 votes
0 answers
133 views

Change File Value in CPU Folder

i want to change value in sched_mc_power_savings file, using this code : #!/system/bin/sh mount -o remount,rw / mount -o remount,rw /system busybox echo "4" > /sys/device/system/cpu/...
user avatar
39 votes
3 answers
42k views

What Percentage of Android Devices Runs on x86 Architecture?

This question might be redundant or a possible duplicate but I am using an NDK library that runs only on ARM devices. Is there a way I could know what percentage of Android devices can my app support ...
user avatar
  • 493
0 votes
0 answers
627 views

How To Check What Apps Is Eating My CPU

My device is so laggy so I downloaded CPU - Z to check my CPU and I see 50 - 70% CPU load I tried Cache deleting and RAM Cleaning but it's still using a lot of CPU Are there any Add-ons so I can ...
user avatar
  • 117
1 vote
0 answers
35 views

When activating DATA, all Apps wants to go online at the same time. any fix?

I like to deactivate my 4G Data or Wifi when I'm not using it. But whenever I activate Data (4G or Wifi), all the Cores of the CPU are being used at 100% and the phone becomes unusable for at least ...
user avatar
0 votes
1 answer
2k views

100% CPU load, battery drain with no app minimized/running in the background

I have a Xiaomi Redmi Note 4 S625 global variant (4/64GB). Like a day or so ago, I noticed a quick battery drain (from 100 to 24% after a whole night idle and 2 - 3 hours of heavy use the next day) ...
user avatar
2 votes
3 answers
5k views

How can I find if I have a rogue background process killing cpu and battery?

On my Android phone (Sony Xperia Z3 Compact), I have a situation where it sometimes goes very sluggish, and the battery drains quickly. This seems to happen after roughly once a day, and lasts until ...
user avatar
  • 143
1 vote
0 answers
507 views

CPU-Z shows all cores stopped

Is there anybody could help me explain this situation? By the way, something malicious I don't know (not cpu-z) cause battery drain whereas anti-virus software tells nothing.
user avatar
1 vote
0 answers
233 views

ARM big.LITTLE effectiveness in custom roms

In stock roms it's obvious that the manufacturer tries to make use of big.LITTLE technology as mush as it can (cluster managing, workload distribution etc.); I'm wandering what will happen to "these ...
user avatar
  • 455
0 votes
0 answers
24 views

Lowest temperature that sensors can measure

So I've doing some work and phone wasn't in my pocket but in room where temperature was low (let's say about 3°C) I was curios what phones battery and cpu temperature sensors say and you see what they ...
user avatar
3 votes
7 answers
13k views

CPU-Z shows 8 cores, but 4 of them are stopped

I am using CPU-Z to test basic things about the J7. It reports an Exynos Octa 7580, 8 cores, 8x ARM Cortex-A53 @ 1.5GHz, r0p3, 28 nm. At all times that I checked, only cores 0-3 are active, and cores ...
user avatar
1 vote
1 answer
494 views

Using phone's computing power to assist in PC's calculation

Is phone cluster or cluster with PC and phones possible? I was thinking if recoding MOSIX or using any other program/software to connect your phone with PC and let the PC use phone's computing power ...
user avatar
  • 11