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Questions tagged [performance]

Performance is characterized by the amount of useful work accomplished by a computer system compared to the time and resources used (Wikipedia).

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Android TOP command CPU usage

I'm running a simple command line audio processing program in a shell on my Nexus 10 (Android 4.4.2), and want it to consume 100% CPU while it runs. The reason being, if I know it used 100% CPU, I can ...
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HTC One V really slow

I bought my HTC One V exactly one year ago, at first everything went really smoothly and it worked like a charm. It didn't take long before the phone crashed from an unexpected error. The phone spent ...
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1k views

My OS and phone freeze and lag every time the blue “Show CPU Usage” bar appears. What is it?

Lately, I've been experiencing the very unpleasant phenomenon of my almost new S3 completely locking up and stopping responding to input. It's like a very serious lag that has to either be waited out, ...
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994 views

Android Ice Cream Sandwich Performance on HTC Vision / Desire Z

I've got a HTC Vision / Desire Z (aka. T-Mobile G2), and I flashed a custom Android Ice Cream Sandwich (ICS) 4.0 ROM on it. Unfortunately, performance leaves a lot to be desired. I've tried the ...
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521 views

Nexus S: slow, jerky web browser scrolling in ICS (compared to Gingerbread)

My Nexus S was OTA-upgraded yesterday to Ice Cream Sandwich 4.0.3 from 2.3 (Gingerbread), and I'm still finding my way around. One problem I've noticed has been web browser performance, particularly ...
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268 views

Android 2.1 - MyTouch Slide 3G - Tips to Fixing Slow Phone & Poor Battery Life [duplicate]

Possible Duplicate: What can I do to increase battery life on my Android phone? What are the best applications or best practices for fixing slow operating phones and poor battery life on Android ...
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1answer
6k views

Samsung Note 2 slow down

I find my note 2 is getting slower and slower after using it for 1 year. Is there anything I can do to make my phone run normally/faster. It looks like the memory is approaching to the max usage. Is ...
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2answers
4k views

galaxy s2 cellphone problem; possible virus

I read that it is used on the computer. It has been coming up on my Android Galaxy 2 s. It is on at least 3 times at once and up to 7 or 8 at once. They are called kworker/0:1 through kworker/0:4 ...
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1answer
388 views

Can Anti-virus affect device performance?

I have installed some anti-viruses on my device, and since then I am feeling that the performance of the device is quite slow, and when I uninstall them the device works fine, and the device starts ...
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1answer
113 views

Does buying thousands of apps (but not installing them) cause bloat in Android?

A few years ago, Google added the ability for app developers to place their apps "on sale". They included the ability for developers to temporarily offer their apps for free. I started "buying" ...
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898 views

Android Low Memory: How to do factory reset of my phone when it won't open anything

My Android phone is constantly giving me a "Low Memory" error on the top of the screen. I would like to uninstall intensive apps or even do a factory reset (following online tutorials), but even if I ...
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1answer
84 views

Phone is lagging

Some apps lag on my phone. For example, Chrome, Opera Beta. But other apps are working quite normal. I noticed that these apps redraw almost all screen, so I believe this is somehow related to ...
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2answers
123 views

Are running apps slowing down Android phones?

When my phone (Xperia J) is getting slow I'll go to Setting→Apps, select running apps, and delete everything in there. Then I go back to the homescreen and I notice that my phone is faster. So is ...
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1answer
1k views

Is a 16gb class 4 micro sd card enough for hd gaming on Xperia Neo V GB?

I want to expand my storage to 16gb primarily for HD gaming (which the Neo V does so well). I have been offered a great deal for a SanDisk 16GB card Class 4 and wanted to clarify if it is enough for ...
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1answer
1k views

Do android phones have hardware chips for encryption? If it's software only, then what is the performance/battery impact?

Do android phones have hardware support for the OOTB full phone encryption or is it entirely done in software? If there are phones which have hardware support for encryption then where could I find a ...
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1answer
657 views

How to prevent CPU throttling after not poking at screen

I'm trying to run some benchmarks on a Nexus 5 using GNURoot Debian. (The purpose of these benchmarks is to figure out which implementation strategy of an algorithm is the fastest on ARMv7, so the CPU ...
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1answer
210 views

SD Maid on Rooted Roger's Galaxy S3 hanging on “System Cleanup” and “Duplicate”

My phone is a rooted Canadian Samsung Galaxy S3 (SGH-I747M) running stock 4.4.2. I've had SD Maid installed for a very long time and it's worked great up until now. I've never had any issues with it. ...
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3k views

Is kernel samepage merging safe?

In the performance section of android 4.4.4 Oneplus one i saw kernel samepage merging . i want to know is it safe ? as when i entered the performance section it gave warning that these setting are ...
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1answer
23k views

Removing junk files from my Android device

Previously I had installed an application for cleaning junk files from my phone, but the app no longer works with my device. What is the best way to find and remove junk files from my phone in order ...
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1answer
150 views

Video and game lags after rooting S3

I recently rooted my phone, and am now using Paranoid and I love it. However, whenever I play videos and games it lags really noticeably. This never happened before I rooted my phone. I'm using ...
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1answer
466 views

Impact of android version on phone performance

I pondering whether I should upgrade my Android system, or stick to my current one. Is there any reference website that would list Android devices and see how different Android versions compare in ...
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1answer
462 views

How to meausre GPU performance in different Custom ROMs

I plan to compare the GPU performance of different GPU powerscale policies. GPU powerscale policies are found under /drivers/msm/gpu/msm[or any other chipset name]/kgsl_pwrscale_XXXX.c under the ...
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1answer
540 views

Scala and ART, android runtime

I understand that Dalvik has a just-in-time compiler. The android team is making ART, android runtime, which has an ahead-of-time compiler. Effectively using Scala can increase code execution time ...
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1answer
1k views

Android lag issues in Galaxy S3?

I know I have previously asked a similar question and I am asking again : why does my Galaxy S3 lag when doing routine tasks ? When pressing HOME button , the screen is supposed to smoothly fade ...
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3answers
13k views

Samsung Galaxy Grand Running Slowly After Upgrading to Android 4.2.2

I am using a Samsung Galaxy Grand for 8 months now, which was originally running Android 4.1.2 Jelly Bean. Recently I got a Firmware Update and upgraded my mobile to Android 4.2.2. After this update, ...
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1answer
3k views

Improving HTC Sensation XE somehow

I have an HTC Sensation XE and the smartphone is becoming slower and worse every day, expecially compared to my Nexus 7 and Samsung Tab 2. Android on the phone is slow and lagged ( I have to wait ...
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1answer
1k views

Xperia X10i slow

Did anyone experience the x10i to become very slow in any given day? After restarting work for few hours fine and then suddenly become. Battery drainage is also very quick almost 4hours of some 10-...
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1answer
139 views

Please check your user name and password error message when I am trying to log in andFBChat1.3.0

I installed andFBChat app on android emulator and when I am traying to log in using my facebook account , it says wrong username and password although they are right why !!
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Why switching off for 5 minutes increase the android device performance

I have observed that an Android device (I have tested on Mi 6 Pro) will regain the performance which have been deteriorated for some months after I have switched off the phone for 5 minutes and then ...
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20 views

Is it possible to prevent an android from slowing down in just 2 or 3 years or even 4 years

I know that SSDs wear out with time but it takes a long amount of time for the wear out noticeable affect performance (not 2 or three years). I can TRIM the SSD as far as I know to bring back it's old ...
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1answer
48 views

Is speed improvement to be expected from rooting/modding a Samsung Galaxy Player 4.2 YP-GI1

I have an old Samsung Galaxy Player 4.2 YP-GI1 lying around and would like to use it either as a media player or a media center remote. However even after a factory reset the device or the UI reacts ...
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23 views

How to find out what slows down a freshly installed OS?

I have two Fairphone 2 devices here, one owned by me, one by my mother. She got hers in September 2017, I in January 2019. Mine has a few slightly upgraded pieces, like a better camera and battery, ...
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1answer
848 views

Does Huawei's super charging affect the battery?

I have a Huawei P20 pro and it came with a "super charger" that can take full charge the phone's battery really quickly. Sometimes in less than an hour. I wonder if this affects the battery's ...
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40 views

How to get rid of Google invasion?

The performance of my phone became very poor. It's very slow. When I open the wifi, it freezes for a few minutes! I had to reset factory default. After the resetting, the phone became super fast once ...
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47 views

S7 edge exynos lost 60% of Geekbench 4 Performance

When I run CPU Benchmark in may 2018, I had 2000/5600. Now, I get 800/2650. Everything but Crypto score has taken a huge hit. I want to find out why. I have not changed anything significant about my ...
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How do I control how many processes run in the background on Android Marshmellow 6.0?

My tablet has a tendency to run kind of slow, and I think it's because there's too much running in the background. How do I control how many things get started at one time?
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1answer
33 views

How to infer battery consumption on a non owned app

I am a back-office system developer, and am struggling to deal with a problem. I am addicted to podcasts (in fact I use the Podcast Addict app), but I am interested in all kinds of subjects and there ...
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104 views

Android Auto unusable

I have a Google Pixel 2 XL and a Sony XAV-AX100. More often than not, when I connect the phone to the car, Android Auto is unusable. Everything is sooooo slow, that I have to reboot the phone. I can ...
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1answer
766 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
308 views

Why my phone keep restarting apps?

When i play game, my phone always restart the game every few minutes to the first screen. It is same when i play a video it is always blinking and skip few seconds every few minutes. It is so annoying ...
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275 views

Why is CPU usage constant high (~2/2/2.5) on Samsung S3?

Short story: Samsung S3 running stock Android 4.3. Was sluggish, turned on "show CPU usage" in developer options and it hovers around 2/2/2.5. Stopping all active apps doesn't help. I see "mmcqd", ...
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36 views

Where to compare flash memory (internal memory) performance?

I used some apps from Google Play ("Disk Speed / Performance Test" and "A1 SD Bench") to get some metrics for the internal storage (NAND flash memory) of my tablet. I got +/- 25 MB/s reading, +/- 9 ...
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46 views

Will there be a performance issue if I put many files in a single ext4 directory?

I have a database of 250,000 tiny audio files that will grow to perhaps 500,000. I need to copy this to my Android phone's ext4-formatted internal storage. I have discovered that some computers are ...
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2answers
165 views

I can not find informations about Hisilicon kirin 650

I want to know if Hisilcon Kirin 650 is a heterogenous or a homogenous processor!! (working all 8 cores or 4 by 4, not in the same time ) Please answer to my question !!
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/system/bin/mediaserver and /system/bin/drmserver dont want these but Android disagrees

I used this link Use Adb to disable Media Server hoping to permanenenly disable the battery hogging media server process . It did not work Mediaserver still runs on my Android 4.4 Jiayu S3 phone as /...
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160 views

can a phone detect 3D posture of a person with the camera?

Does an Android phone have everything it needs to reconstruct someone's posture, by using the camera sensors? If yes, are nowadays' phones fast enough for this? Here's a video of what I mean on the ...
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29 views

should (or shouldn't) I clean the ram when I closed all applications?

This might be a bit of a general question but nevertheless: Performance wise: should I, when I kill all apps (or some of them) also clear memory? I know that android keeps a stack of apps (...
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1answer
140 views

Android-System causes my smartphone to lag

The Process Àndroid-System causes my Smartphone to lag very often since it uses much CPU and drains my battery. Restart does not work. There is no other process using as much CPU. MediaServer seems ...
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3answers
533 views

HTC One internal storage performing very slowly

Using A1 SD, I can see that my HTC One (M7)'s 'internal SD card' (ie, the embedded storage) is incredibly slow compared to other benchmarks listed by anonymous users for the same phone. I'm only ...
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1answer
193 views

Touch lags in all apps, except keyboard

I've noticed a delay of about a quarter of a second between tapping the screen and the app responding. Thud happens in all apps - it's most obvious in the game "aa", a fast, reflex-based game which is ...