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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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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5answers
17k views

Black screen starting an app

Occasionally I'll start an app only to be presented with the App's title bar and a black screen. Usually the app's interface shows after 3-10 seconds. Very rarely the screen will stay black. I don't ...
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1answer
81 views

How come Android can support 2 apps in split screen but not in background?

I read another question on Ask Different about why apps have to reload when you switch to another app and back, and I think it's the same for Android. But why does this not happen in split screen? ...
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1answer
40 views

Should I get A1 or A2 spec'd Micro SD card for my phone?

I'm currently running with Samsung EVO Micro SD card in my phone (GT-i9195 or serranoltexx) in Adotable storage mode. I'm looking for a faster card to improve performance. I was about to get Sandisk ...
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2answers
535 views

Today I read that flash write performance diminishes with use. I'm a heavy user. Should I change my behavior?

My phone I own a phone with gigabytes of built-in flash memory. My phone also includes a physical MicroSD card slot. I don't own a MicroSD card to put in the slot, and have never bothered buying ...
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1answer
66 views

If I reset my phone, will it also TRIM the fragmented eMMC?

I know that Android supports fstrim but it only works if the phone is idle for a long time while charging. I think my phone is too fragmented and is lacking performance so I want to reset it but I am ...
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0answers
76 views

Why is ART still needed on Android?

The reason Andy Rubin chose Java for Android Dev is not publicly known, only speculations, but it seems to me that the combination of being able to run a Java app everywhere (because the earliest ...
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7answers
146k views

Are there any downsides or risks to limiting background processes?

I enabled developer options on my Samsung Galaxy Grand Duos and then changed "Limit background process" option from Standard limit to No background process. After that my phone is working fine, with ...
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1answer
1k views

Sony Reader PRS-T1 becomes unresponsive

My Sony Reader PRS-T1 based on Android 2.2 is acting funny. I had rooted it in the past but is now in the "original" state, upgraded with the latest official firmware. The problem is that many times,...
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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 ...
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3answers
5k views

How to force TRIM on Android device?

With 4.3 enabling the support for TRIM (though I read that it was present since the first JB). I was wondering if there is a way for me to force TRIM on my device? Is there an app that I can sideload ...
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1answer
1k views

High CPU usage from UEventObserver and inputmethod.latin (Nexus S)

I have kept my Google Nexus S up to date with the latest Android O/S since I've owned it and its always had performance problems to varying degrees. I'm currently running: Android version: 4.1.2 ...
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0answers
80 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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3answers
10k views

Dialer is very slow between dialing the number and getting into the call: spinning wheel for 5-10 seconds

I have a Nexus 4 with CM (latest version). For the last few months whenever I dial a number it takes anywhere from 5-10 seconds for the actual call to start. I checked Android SE and didn't find ...
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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 ...
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1answer
44 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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1answer
145 views

Clock speed of Adreno 509

I'm sorry if this if off topic but I don't know a better place to put it, after it's a GPU used in Android device My ROM maintainer has capped it at 430 mhz on the Moto z3 play. I distinctly remember ...
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1answer
60 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 ...
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5answers
6k views

Nexus 7 2012 is almost unusable after upgrading to the latest Lollipop. What should I do?

I have a Nexus 7 2012 wifi. With the latest version of Lollipop it has really become unusable, freezing for a minute or more, or even rebooting while loading a page in Chrome. I did a system reset, ...
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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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2answers
10k views

My phone keeps slowing down and burning battery. How can I debug performance and cpu consumption? (DHD 2.2)

I know there are already a lot of threads about suggestions on how to improve performance and, strongly related, save battery life on your android. I also have tried most of the tools to diagnose ...
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22 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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5answers
2k views

Does downloading too many games slow down a device?

I have over 15 games on my device. Some do occupy some memory; others not so much. I have enough leftover memory on the phone. Is it true that this can slow down the device?
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1answer
560 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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39 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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43 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
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
747 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 ...
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0answers
22 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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2answers
3k views

Are there guidelines on how much free RAM a phone should have - specifically Samsung Galaxy S?

I have a Samsung Galaxy S (AT&T Captivate) that is rooted. I have various ways to tweak the amount of free RAM the OS leaves on the phone. The default is 48 MB, but I was wondering if I could ...
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34 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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1answer
5k views

Slow touch response

My girlfriend bought a Lenovo K6 with Android 6 a few months ago. After some time, I tried to use her phone and I notice that the touch responsiveness was very slow. I feel a delay in every touch (...
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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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2answers
743 views

Lenovo Vibe p1m suddenly slow

Today I notice my Lenovo Vibe p1m is running slow. It coudn't open Chrome without freezing. The whole UI is basically sluggish. It also couldn't open the flashlight. I have tried removing the sdcard ...
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99 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
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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5answers
207k views

My device is getting slow, apps start misbehaving/crashing. What can I do?

Everything was working fine for a long time. But suddenly the device is getting slower than usual (e.g. apps react slowly when starting an action -- like the RSS reader takes "ages" to open an article)...
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3answers
3k views

Reduce delay when waking up the phone

The delay between me pressing the power button and the phone actually waking up is annoying. Is there any way to optimize this?
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1answer
36 views

lan transfer speeds

I have been trying to figure out what is limiting my lan transfer speeds. I have openwrt/lede on my linksys router, and a samba server running on it with a usb hdd plugged in. My last device, a M8s ...
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4answers
7k views

Is it possible, that old smartphone becomes slow simply because it is old?

I have 3.5 half year old Samsung / Google Galaxy Nexus i9250. The phone has become so slow after that time, that it is simply being unusable. Launching any application, as simple as Gmail or Calendar ...
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1answer
8k views

Improving performance of YouTube app

I have a Galaxy Tab 10.1 (a.k.a. p4, P7500), running Android 4.2.2 rooted (latest CyanogenMod nightly build: 10.1-20131208-NIGHTLY-p4) and YouTube v5.3.28. Does anyone have an idea how to improve the ...
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3answers
9k views

How to reduce number of screens on HTC Sense android phones?

I was wondering, is there a way to reduce the number of screens available with HTC sense phones to say 5? Just I find that 7 screens is excessive for my needs, and I heard I can get a decent ...
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1answer
19k views

Is it necessary to update android apps

Recently i got a new android smartphone and i want know if its necessary to update android apps frequently.The reason for asking this is 1)does updates for android apps reduce the battery usage? 2)...
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1answer
739 views

Samsung S7: stuttering during slow motion video recording

When I try to record slow-motion video on a Samsung S7 (running Android 7.0), there is often stuttering. This has ruined some otherwise amazing footage I acquired. What can I do to ensure that there ...
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3answers
2k views

Why are apps slowing down my phone just by being installed?

I have about 50 apps installed on my phone (not counting system apps). And my phone is absolutely unusable this way. Everything lags so bad that I can barely even enter my lockscreen pattern. I ...
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0answers
498 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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1answer
386 views

My HTC Hero Upgrade to Android 2.1 has slowed it down!

I went ahead and let my phone update itself and since then it's been realllly SLOW. Phone calls take 5-45 seconds to connect, which is beyond aggravating. Apps don't run as fast as they use to. And I ...
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1answer
289 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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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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257 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", ...