Questions tagged [cpu]

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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 ...
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CPU and Processor

i have a Mi Max 1 2016 model Everything was fine until A month ago i replaced my display After that the phone used to hang for6-7 seconds only when i quit apps and games high gps ones So i checked ...
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26 views

Reliably set CPU Affinity

I need to benchmark the performance of every core in an Android phone, so I need to run a program exclusively on a core. Fortunately, I'm dealing with a dynamIQ chip from Qualcomm, so I think I ...
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1answer
31 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:/...
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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 ...
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55 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 ...
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1answer
61 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? ...
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27 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 ...
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37 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 ...
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13 views

Understanding OnePlus CPU load numbers

I am investigating why my OnePlus Two can sometimes be slow, and I have troubles understanding the CPU load average displayed by the stock CPU monitor (which can be seen here) I constantly have ...
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51 views

All CPU cores have identical usage

I have Xiaomi Mi A2 lite, which was originally running Android 9 by manufacturer, not MIUI and other utilities. Now it's running Android 10 after an upgrade. I'm tired by that applications are often ...
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35 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 ...
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94 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 ...
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137 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 ...
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1answer
601 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 ...
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1answer
54 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 ...
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1answer
190 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 ...
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1answer
657 views

Number of available cores

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 ...
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1answer
225 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 ...
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1answer
132 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 ...
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2answers
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 ...
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1answer
1k 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 ...
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595 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 ...
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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 ...
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2answers
327 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 ...
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0answers
323 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 ...
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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 ...
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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 ...
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1answer
854 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 ...
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1answer
523 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 ...
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103 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/...
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3answers
36k 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 ...
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612 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 ...
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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 ...
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1answer
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) ...
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3answers
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 ...
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481 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.
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228 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 ...
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22 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 ...
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7answers
11k 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 ...
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1answer
406 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 ...