Owners of the popular Xiaomi Redmi Note 7 smartphone often face a situation where the device starts to work slower, and running applications fly out a few seconds after folding. These are classic signs of a lack of RAM (RAM). Despite the fact that the model was originally equipped with 3, 4 or 6 gigabytes of RAM, over time the system becomes cache and background processes begin to consume resources more aggressively.
Understanding how the system allocates resources and what eats up space is the first step to speeding up the device. In the MIUI shell, memory management mechanisms are different from pure Android, which often confuses users. However, using built-in tools and hidden menus, you can pinpoint the culprit of the problems.
Next, we'll look at proven diagnostic methods that can help you identify voracious applications, so you don't have to be a programmer to understand the processes running in the background, but you just have to follow the instructions and analyze the data carefully to make the right optimization decisions.
Built-in memory usage analyzer in MIUI
The easiest and safest way to start a diagnosis is to go to the built-in system. The MIUI shell provides a fairly detailed statistic that is hidden from the eyes of the average user in the standard menu, but is available through the developer settings or special codes. The first thing to do is check the basic statistics that show the total amount of memory occupied without detailing by process.
To get more accurate data, activate the developer mode. This action opens access to system logs and advanced control options. Go to Settings → About your phone and quickly click on the MIUI version seven times. After the notification “You became a developer”, go back to the main settings menu and select “Additional” and then “For developers”.
In the list that opens, look for the Memory or Memory Usage section, where it shows how many megabytes or gigabytes are currently occupied, but for deep analysis on the Redmi Note 7, it’s better to use the ADB command or special applications, since the standard interface often hides real resource eaters, such as Google’s system services or the components of the shell itself.
⚠️ Warning: Do not disable system processes with unclear names in the developer menu.This can lead to unstable interface operation or cyclical device reboot.
A standard task manager called a bottom-up swipe or menu button only shows active apps, not background services. It is background services that are most often the reason why free memory disappears immediately after the phone is turned on. So relying only on the visual list of running applications is not worth it.
📊 How often does your Redmi Note 7 freeze?
Every day.
Once a week.
Only after the updates
Never hangs.
For detailed information about what exactly consumes resources, there is a hidden statistics menu available through an engineering menu or through debugging commands. On the Xiaomi Redmi Note 7, the most effective way to use the adb shell dumpsys meminfo command if a computer is connected, or install specialized monitoring applications from the Google Play store.
If you don't want to connect your smartphone to your PC, you can use the Stats app, which is often already built in, but hidden. To find it, use a settings search, type in the word "statistics." This menu shows the memory usage schedule for the last hour, day or week, and it allows you to track when resource consumption is skyrocketing.
Note the cached column. On Android, free memory is considered wasted, so the system tries to keep frequently used applications in cache. However, if the amount of cached memory is not released when you run a heavy application or game, then the LMK (Low Memory Killer) cleanup mechanism is not working correctly or is set up too aggressively.
What is ZRAM and how does it affect memory?
ZRAM — It's a memory compression technology. 7 Some of the physical memory is allocated to a virtual partition where the data is compressed, which allows you to keep more applications in the background, but can slightly increase the load on the processor when unpacking the data.> The table below shows the approximate memory consumption values for standard processes. MIUI on the Redmi Note 7. If you see a significant increase in these values, consider checking your device.Process/Service Normal consumption Critical value System Server 300 - 500 MB more 800 Google Play Services MBT 150 - 300 MB more 600 MB MIUI Home (Luncher) 200 - 400 MB more 700 MB Chrome/Browser 100 - 300 MB more 1 GB Analysis of third-party applications-eaters Often the reason for the lack of resources are not system services, but user-installed applications. Social networks, messengers and news aggregators tend to inflate in size and occupy all available space in the Internet. RAM. This is especially true for applications that are written on the Electron engine or that use heavy web viewing components. To identify these types of intruders, go to Settings. → Annexes → All applications. Sort the list by the amount of memory you use (if this option is available in your version). MIUI) or check each suspicious application manually. In the application card, click on Memory Consumption or Memory Use to see detailed statistics. 📱 Social media: VK, Telegram and Instagram often keep background services active for instant notifications, which blocks memory cleanup. 🛒 Marketplaces: Store apps (AliExpress, Ozon, Wildberries) can run hidden synchronization and geolocation processes. 🎮 Games and launchers: Heavy games may not be fully unloaded from memory even after closing, taking up hundreds of megabytes. Paradoxically, they are often the cause of the problem, constantly hanging in the background and consuming resources to simulate useful activities. Removing such “optimizers” often gives a more noticeable increase in productivity than using them. RAM There is a category of software that masquerades as system processes or harmless utilities, but in fact is engaged in mining cryptocurrencies or displaying advertising in the background. Such programs can quietly load RAM to 100%, causing strong lags and heating of the case Xiaomi Redmi Note 7. Signs of this software include spontaneous opening of advertising windows on the desktop, rapid battery discharge even in standby mode, and the presence of processes with strange names in the task manager. APK-To check the device, it is recommended to use antivirus scanners such as Dr.Web Light or Kaspersky, and to carefully examine the list of installed applications. If you see an application without an icon or with a name consisting of a set of characters, delete it immediately. Also check the access rights in the Accessibility menu, where malicious software often prescribes itself to gain control of the system. ⚠️ Note: If the ad hasn’t disappeared after removing the suspicious app, it may have installed an additional module, in which case a full factory reset may be required. If you have determined that memory is being consumed by legitimate applications, but you need to free up resources for a specific task (such as a game), you can forcefully limit the number of background processes. This setting is in the Developer Menu and allows you to strictly limit the number of simultaneous applications. Find the item "Limit background processes" and select the value "No more than 2 processes" or "No more than 3 processes". This will force the Android system to more aggressively unload old applications from memory when you launch new ones. However, it is worth remembering that this can lead to loss of application state (for example, an underloaded page in the browser or an interrupted file loading). When this feature is enabled, the system will destroy activity as soon as the user switches to another application. RAM, But it will make multitasking impossible. Use it only in extreme cases. ☑️ Check Memory settingsEnable developer modeFind the limit of background processesEstablish the limitation (2-3 Process)Check the system Back settings if inconvenient: 0 / 5 Radical measures: System reset and optimization When software methods do not help, and the phone continues to lose memory, it is possible that registry errors have accumulated in the system or system files are damaged. In the case of MIUI, a common problem is the proliferation of a database of media files or update cache. The first step should be to clear the cache through Recovery Mode. To enter recovery mode, turn off the phone, then press the Volume Up + Power buttons at the same time. In the menu that appears, select "Wipe Data" → "Wipe Cache" (don't confuse with Wipe All Data if you don't want to lose files). This will safely delete temporary system files that could take up gigabytes of RAM when indexing. If this does not help, then you will be sure to make a full copy of the new computer from the cloud, then you will be able to reset the new data with a clean version of the data from the new one. 💡Full reset is the only guaranteed solution if the cause of the memory leak is a deep system failure or a virus that has embedded in the system partition. MIUI Did memory get used up faster? After a major shell upgrade MIUI The system re-indexes files and optimizes applications for the new version of Android. 24-48 After the update, memory and battery consumption may be increased.This is a normal process that must stabilize on its own. 7? Memory Extension uses some of the internal flash memory as a virtual RAM, on older models or when using eMMC slow memory. 5.1 This can even slow down the system, since the read speed of the flash memory record is lower than that of the real one. RAM. Better to keep this feature off. Can you physically increase RAM on the Redmi Note 7? No, RAM chips are soldered directly into the motherboard. Technical replacement is only possible in a dedicated service center with soldering equipment and ID flashing, which is economically impractical and risky for the average user. How often should you reboot your smartphone to clean up memory? Modern versions of Android and MIUI effectively manage memory on their own. However, preventive reboot every 3-5 days is useful for resetting accumulated errors in the operation of drivers and services.