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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).

3
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1answer
58 views

How do I troubleshoot low touchscreen event rate?

I have a strange slowdown on my device (non-rooted Android 5.0.2). At times, the screen becomes unresponsive. And touchscreen testing apps register only a few events per second when I move my finger ...
3
votes
1answer
688 views

Fast boot up on iMX6

I'm working with a development board based on Freescale i.MX6 ARM Cortex A9 processors. You can have more info about the board on this link. The Android version I'm using is the one provided by the ...
3
votes
1answer
2k views

Android 4.0.3 sluggish: nandd process hogging CPU

I have an Allwinner A10 tablet clone. While working the tablet "freezes" regularly but not too frequently for a strech of time between 2 and 15 seconds. Described differently: the tablet is useable ...
2
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1answer
119 views

So, what type of process is Android Keyboard?

I've recently installed CyanogenMod 11 on my (now very old) LG Optimus 2X. After some tweaking, I managed to make it work much snappier than the original ROM, one of the main things being setting the ...
2
votes
1answer
1k views

Text messaging so slow it is nearly unusable

I have a Galaxy S5 running 4.4.2. I am trying to send a text message to a certain contact. When I select their name from the list of messages, there is a 30 second delay. While typing, sometimes ...
1
vote
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 ...
0
votes
1answer
311 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 ...
0
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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 ...
0
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1answer
710 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 ...
4
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0answers
662 views

LG G2 getting sluggier by the day

I'm not sure if this is specific to this model or not, but I am having troubles understanding how four cores of over 2GHz can perform so miserably slow. During the last few days, it's gotten to the ...
4
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0answers
170 views

Do Android devices become slower with time?

I own a Galaxy S (2.3.5 / GT-I9000 / BVJV3) and use it since two and a half years. I also have bought more recent hardware, like an iPad Mini and a more recent Android tablet, which comparatively are ...
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0answers
457 views

How to identify which app is reading from my disk

Except for disabling one app at a time or all at once and then enable them all slowly again (The Elimination method) - How do I identify what app is reading my disk ? it happens periodically and ...
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0answers
743 views

Samsung Galaxy S6 edge scroll stuttering

I have just bought an Samsung Galaxy S6 Edge smartphone. After updating the firmware to 5.1.1 version, which is the latest Android software for this phone at this moment, there are some issues with ...
2
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0answers
24 views

microSD card performance issue

I have some microSD cards and I noticed a weird behaviour: larger microSDs give lower results! For example, using them on my Note 8, I get these results: Code: 64GB -> R: 70MBs W: 35MBs 128GB -&...
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0answers
178 views

Massive slow down when changing networks

Whenever my phone switches from cellular to wifi or the reverse, the phone effectively stalls. This can last for a minute or so. It is still functional during this time, but very slow and stuttering ...
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0answers
44 views

Find process causing io

I've been having some serious performance problems with my fairphone (wait times of 1 minute or more before apps open or switching apps, and general lack of responsiveness). I installed System ...
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0answers
2k views

Explain the ondemand CPUFreq governor parameters in SAMSUNG galaxy S4?

I am trying to understand how does the onDemand CPUFreq governor works. I have a SAMSUNG S4 device and I looked into the following file to see the tuneable parameters of SAMSUNG Glaxy S4 GT-i9505 (...
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0answers
664 views

HTC desire x issues after update to Android 4.1 Sense 4+

Ever since I installed the update to 4.1 I've been having major issues with my desire x. The keyboard disappears frequently while typing, sometimes I can't get it back without closing the app and ...
2
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0answers
372 views

TRIM command operability in Android 4.3

Has anyone been able to confirm the usage and operability of the fstrim (TRIM) functionality in the latest Android 4.3 (Jelly Bean) release? I have seen multiple articles mention the operability of ...
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0answers
3k views

Samsung Galaxy S has become very slow

My phone recently has begun to become very slow. At certain times of the day, the phone will completely stop working and will have to be turned off by holding the power button. Sometimes, the lock ...
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0answers
55 views

Does installing, deleting and reinstalling an app make your phone slower?

I recently bought my oneplus 7 pro and I was wondering if installing a certain app, deleting it, and reinstalling it again makes my phone slower. I was forced to do this to a certain application today....
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0answers
20 views

Incredibly low performance of Contacts app in Moto Z / Android 8

My 4 GB/64 GB/8 core Moto Z2 is incredibly slow when it comes to built in Contacts app. I.e.: it requires at least 3-4 seconds to open it up, it needs at least 2-3 seconds to exchange phone numbers ...
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0answers
55 views

How can I debug degrading performance for my Shamu device?

I've had my Nexus 6 since it first came out and will be replacing it with the new Pixel anyway but I want to get to the bottom of this. In the last 6+ months the phone got increasingly slow and ...
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0answers
399 views

OnePlus Two Freezes often

I have been using the OnePlus Two for few months now. About two months ago it started freezing and slowing down. Often I have to power cycle the phone in order to get it working again. Usually it ...
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0answers
2k views

Analyse performance / profile Android System? Why is the system slow?

My Android 4.2.1 tablet is slow, it wasn’t when purchased. As the reason is often the software, I was looking for a tool to analyse the performance of the whole system, but couldn’t find any. What I ...
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0answers
5k views

What is filling my phone's RAM, if not apps?

My Galaxy S3 has gone from snappy to slow over the past few weeks: When I open or change apps it reacts very slowly. When the app is running that app is working fine. It resembles having too little ...
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vote
0answers
2k views

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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0answers
7k views

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 ...
1
vote
0answers
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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0answers
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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0answers
520 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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0answers
20 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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0answers
37 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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0answers
41 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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0answers
33 views

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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0answers
172 views

CPU usage unusually high

My phone has become very slow suddenly. No new apps were installed. RAM usage seems fine. Can't open some apps like Chrome, it just freezes. I opened Developer mode > Show CPU, and this is what it ...
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0answers
98 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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0answers
64 views

If I convert android system app into user app, will it give any performance improvement?

There is something called "Background cache" in which the some system apps are listed similar to the list of apps occupied RAM memory. If I convert system apps into user apps,ex: chrome, will it gives ...
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0answers
237 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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0answers
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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0answers
40 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 ...
0
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0answers
288 views

fstrim not working

I have a Samsung Galaxy Note II running CyanogenMod 11, so it's obviously rooted. As of recently the phone seems very laggy and much slower than it used to be. So I did some research and tried ...
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0answers
1k views

/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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0answers
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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0answers
28 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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0answers
773 views

Slow home screen load, applications restarting

The problem has a few symptoms. 1) Whenever I return to the home screen it takes a few seconds to redraw. 2) Most applications restart when I switch back and forth between them. 3) If I go to the ...
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0answers
2k views

Very specific Asus MeMO Pad HD 7 Wi-Fi problem

I've got a fairly odd problem and have not been able to find a solution for months... I have n Asus MeMO pad HD 7 (ME173X) running Android 4.2.2 which usually does just fine connecting to Wi-fi to ...
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0answers
112 views

Does Android indeed need defragment?

I have recently format(not just wiping) userdata partition on Note 2 N7100 and Tab 7.7 P6800. I also restore /data using nandroid and restore internal sdcard by manually copying files. I notice that ...
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0answers
1k views

Why is the screen rotation slow and freezing the screen?

I have a Samsung Galaxy note 10.1, and the screen rotation before was noticeably quicker. It just recently started to take another second or two to rotate. On top of that, everything on screen will ...
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0answers
584 views

Why does installing applications freeze my DroidX running Froyo 2.2?

I noticed recently that installing any applications caused my Droid X (Stock rooted Froyo 2.2) to freeze for a while - I mean completely freeze, can't go to home screen or pull down Notification bar ...