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Today we learn about How Mobile Phones get Slower....?
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If you’ve had your Android device for a while, you’ve probably started to notice some lag that wasn’t there before. Apps load a bit slower, menus take a bit longer to show up. This is actually (and unfortunately) normal—here’s why.
This problem isn’t unique to Android, either—try using an older iPad with a new version of iOS and feel how slow it’s become. But the solutions are slightly different for each platform, so let’s talk about why this happens on Android—and how to fix it.
Operating System Updates and Heavier Apps Require More Resources
Your Android phone doesn’t have the same software it had a year ago (it shouldn’t, at least). If you’ve received Android operating system updates, they may not be as nicely optimized for your device and may have slowed it down. Or, your carrier or manufacturer may have added additional bloatware apps in an update, which run in the background and slow things down.
Even if you haven’t seen a single operating system update, the apps running on your device are newer. As developers gain access to faster smartphone hardware, games and other apps may be optimized for this faster hardware and perform worse on older devices. This is true on every platform: as the years go by, websites become heavier, desktop applications want more RAM, and PC games become more demanding. You aren’t still using Microsoft Office 97 on your computer, for example—you’re using a newer version with more features that require more resources. Android apps are the same way.
How to Fix It:
There’s not much you can do to alleviate this. If your operating system seems slow, you could install a custom ROM that doesn’t have the bloatware and slow manufacturer skins many devices include—though keep in mind that this is generally for more advanced users and is often more trouble that it’s worth. If your apps seem slow, try switching to “lite” versions of the apps you’re already using.Background Processes Can Slow Things Down
You’ve probably installed more apps as you continue to use your device, some of which open at startup and run in the background. If you’ve installed a lot of apps that run in the background, they can consume CPU resources, fill up RAM, and slow down your device.Similarly, if you’re using a live wallpaper or have a large amount of widgets on your home screen, these also take up CPU, graphics, and memory resources. Slim down your home screen and you’ll see an improvement in performance (and maybe even battery life).
How to Fix It: Disable live wallpapers, remove widgets from your home screen, and uninstall or disable apps you don’t use. To check what apps are using background processes, visit the Running Services menu in Developer Settings (on Marshmallow and above). If you don’t use an app that’s running in the background, uninstall it. If you can’t uninstall it because it came with your device, disable it.
How to Fix It:
Photos and videos that you’ve taken with your camera are going to be the largest culprit here, so back them up and delete them from your phone often. You can even do this manually by using Google Photos.
Memory Bloat :-
Each time they update, apps typically become larger and more full of features. Visual pizzazz is also a major attraction, and so desktop and mobile operating systems periodically receive significant redesigns.All that extra functionality and glitz requires your device to do more computation than it did when it arrived home from the store.
Given that it doesn't magically speed up to compensate, it has less spare capacity available to respond to you quickly.
Newer apps not only tend to do more computation, they also usually take up more space in your device's storage.
Devices only have a limited amount of fast "Random Access Memory" (RAM) available.
When it runs out of space in RAM, your device can shift things to and from the much slower (and permanent until explicitly erased) data storage, flash memory, which takes considerable time.
In older PCs with mechanical hard disks, this used to be called "thrashing", as users heard the hard disk's read-write heads moving across the platters as they waited for data to be shifted in and out of the filled-up RAM.
Flash memory is silent and much faster than magnetic hard disks ever were, but it is still orders of magnitude slower than RAM.
Excessive caching
To make their apps run faster, some designers make them store copies of things in RAM that they think the user might want to see again to speed things up.
For instance, a web browser might retain a copy of what the content in each tab looks like, even if only one tab is visible at a given moment.
Known as caching, this makes things work much faster — until your system starts to run out of memory.
Some app developers don't put the effort that they should into doing this well, and their applications not only slow down over time, but can drag the rest of the system down with them too.
More and more software
It's also not uncommon for useful software to be accompanied by "crapware" — less-than-useful add-ons like browser toolbars — that use system resources and impact performance.
Additional software can slow a system down in many ways: filling up permanent storage, using up more precious RAM, and using the computer's central processing unit "in the background" without you noticing.
All these factors can result in the system having fewer resources available to respond to you promptly.
Another unpleasant possibility is that some of the computing capabilities of your device are being used by malware — whether viruses, worms or other varieties of malicious software.
What can you do?
You're not going to be able to match the performance of the latest and greatest high-end smartphone, tablet, or PC with an older model, as newer devices generally have fundamentally faster components.
But with a small amount of effort, you can get the most out of your existing device.
Whether you're using a phone, tablet, PC or Mac, the most useful zero-cost action you can take is to uninstall unnecessary apps and add-ons.
However, in some circumstances it may be easier — after carefully backing up all your data — to simply perform the equivalent of a factory reset and reinstall the operating system from scratch, adding only the apps you actually need.
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