What takes up RAM on Xiaomi: full analysis + ways to release

Why is Xiaomi’s RAM always loaded – and that’s OK?

You opened Task Manager on your Xiaomi Redmi Note 12 or POCO X5 Pro, and there is 80% of RAM occupied, even though only 2-3 applications are running? Don't panic: Android (especially in MIUI firmware) manages memory differently than Windows. The system actively uses free RAM to caching frequently used data - this speeds up work, not slows it down.

However, if a smartphone starts to lag, apps crash or reboot, which means that the memory is really overloaded with critical processes, not just optimized. In this article, we will discuss what exactly eats up RAM on Xiaomi, how to distinguish normal from problematic loading, and what to do about it.

Spoiler: 90% of the time, it's not viruses or firmware curves that are to blame, but user settings or background processes that you don't even know you're doing, and then there's the specific reasons with the diagnostic instructions.

1. MIUI System Processes: How Much Memory Are They Stealing?

MIUI firmware (even in the lightweight version for POCO) is known for its appetite for resources, and in the background, there are constantly running services that can not be turned off without root rights.

• 🔄 MIUI Optimization is a service that manages the smoothness of animations and preloads applications. It takes 150-300 MB of RAM constantly.
• 📡 Mi Cloud Sync – synchronize contacts, notes and photos with the Xiaomi cloud. consumes up to 200 MB if background download is enabled.
• 🛡️ Security App — built-in antivirus and security monitoring. Works always, eating 100-250 MB.
• 📊 Analytics & Feedback – Collecting Data to Improve MIUI. It can take up to 150 MB if not disabled.

To see the exact numbers, go to Settings → About Phone → System Status → Memory Use. It shows all system processes with real-time RAM consumption.

⚠️ Warning: Do not disable system services through adb or applications like Disable Service without understanding the consequences! this can lead to loss of functionality (for example, stop working gestures or notifications).

2. Applications with background activity: how to calculate them?

Many programs continue to work after closing, updating data or showing notifications, especially by:

• 📱 Social networks (Facebook, Instagram, TikTok) - keep up to 500 MB of RAM for each, even in a folded state.
• 💬 Messengers (Telegram, WhatsApp, Viber) – consume 80-200 MB for background chat synchronization.
• 🎮 Games (Genshin Impact, PUBG Mobile – can “forget” to release RAM after the release, leaving in memory up to 1-1.5 GB.
• 📈 Financial applications (SberBank Online, Tinkoff) – block RAM cleanup due to “security».

Check the background activity as follows:

1. Open Settings → Applications → Application Management.
2. Slip three dots in the upper right corner → Sort by memory usage.
3. See which programs occupy the most RAM in the Background Processes section.

Disable auto-update apps in Google Play|

Prohibit background activity for unnecessary programs |

Limit data synchronization in account settings |

Use the “Light” version of messengers (for example, Telegram X)|-->

Important: Not all processes can be closed manually, like Google Play Services or Mi Account will return to RAM in a few seconds, which is normal.

3.Cash and 'junk' files: hidden memory eaters

Cache speeds up applications, but it grows to giant sizes over time. Xiaomi has two critical areas:

1. MIUI cache — temporary firmware files (updates, themes, wallpapers) can take up to 1-2 GB.
2. Google Play Services cache – data for Google services (maps, geolocation, push notifications) up to 500 MB.

How to clean:

1. Go to Settings → Storage → Cleaning.
2. Select App Cache and Garbage Files.
3. Click Clear (don’t be afraid – it won’t delete personal data).

⚠️ Warning: Do not clear the cache of system applications (Settings, Phone, Messages) without need! this can reset the default settings.

4. Viruses and Malware: How do they disguise themselves?

If RAM is loaded unreasonably high (for example, 3-4 GB of 6 GB is occupied by unknown things), malware may be active.

• 📱 «Memory Optimizers (e.g. Clean Master, DU Speed Booster – become a source of advertising and background processes.
• 🎮 Modified APK (hacked games or applications – contain hidden miners or spyware.
• 📊 Fake “updates” MIUI» — request to install the file outside of Settings → Updating the system.

How to check:

1. Install Malwarebytes or Dr.Web Light from Google Play.
2. Start a deep scan (not fast!).
3. See the list of processes in Settings → Applications → Launched – look for unfamiliar names with Cyrillic or random letters (for example, com.abc.xyz123).

If the antivirus finds threats in system files (for example, in /system/priv-app), you will have to do a complete reset or reflash the device.

5. System Updates and Background File Download

MIUI often downloads updates in the background, even if you haven't clicked "Update." This can take up to 1-2 GB of RAM during:

• 🔄 Downloads of the new firmware version (file weighs 2-3 GB, but unpacks in memory).
• 📥 Updates to embedded applications (Mi Video, Mi Music, Browser).
• 🌐 Synchronization of data with Mi Account (photos, notes, contacts).

How to control:

1. Open Settings → About the phone → System update.
2. Slip on three points → Update settings.
3. Turn off Automatic Download via mobile internet.
4. Set a limit on background loading in Settings → Network and Internet → Data Use.

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If the smartphone is slowing down during the upgrade, restart it in Safe Mode (press the power button → long press on “Stop”). In this mode, the update will pause, and you can free up the RAM.

6.Iron problems: when it is not the fault of the software

If all optimization methods did not help, the problem may be in the hardware:

• 🔋 Worn-out battery – at a charge below 15%, the processor limits performance, but RAM remains loaded.
• 🔥 Overheating - at temperatures above 45°C system artificially loads RAM to "slow down" processor.
• 🛠️ Faulty memory – if the RAM module is damaged, the system can “see” less memory than it actually is.

How to diagnose:

1. Check the battery status in Settings → Battery → Battery status (if available).
2. Use the AIDA64 app for a memory test (Tests → Memory).
3. If the smartphone is rebooted when the RAM is loaded more than 80%, this is a sign of a malfunction.

⚠️ Note: Xiaomi with Snapdragon processors 4xx/6xx (Like Redmi. 9A, POCO M3) Frequently encountered bug with “memory leakage” due to Adreno drivers GPU. The solution is to update the firmware to the latest version or roll back to stable.

7. How to properly clean the RAM without harming the system?

Many users make the mistake of clicking "Clear Memory" in Task Manager every hour, which is bad for performance! Here's the right algorithm:

Only close applications that are not actually used |

Do not clear the cache of system processes (MIUI, Google Services) |

Use the built-in Optimizer (Settings → Special Features → Optimization)|

Reboot the smartphone 1 time in 2-3 days to dump “garbage»|-->

If you need to release your memory immediately:

1. Press the Home button (or swipe up and hold on MIUI 12+).
2. Put it on the icon Close everything (but not for games – it is better to close them one at a time!).
3. For deep cleaning, use the command: adb shell am broadcast -a android.intent.action.CLOSE_SYSTEM_DIALOGS (Developer mode is required and the connection is required ADB).

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Cleaning RAM manually makes sense only if the smartphone is getting stuck or slowing. Otherwise, trust the automatic optimization of Android!

FAQ: Frequent questions about memory on Xiaomi