What is the background process limit and why is it important
Background processes on Xiaomi smartphones are applications that continue to work even after their interface is closed, update data, sync with servers or perform other tasks in hidden mode, but too many of these processes can significantly load the processor, reduce battery life and slow down the system.
The MIUI (and the new HyperOS) operating shell allows you to manually limit the number of background processes through hidden developer settings, a feature that is especially useful for devices with 4-6 GB of RAM, where every megabyte of memory counts. But how do you choose the right value so that you don’t lose functionality?
In this article, we will discuss:
- 🔍 How the background limit affects performance and battery
- ⚙️ Where is this setting in MIUI 14/15 HyperOS
- 📊 Optimal values for different use cases
- ⚠️ What apps can “break” under aggressive restrictions
Where to find the setting of the limit of background processes
The default option is hidden in the developer menu, so you can activate it.
- Go to Settings. → The phone.
- Click the MIUI Version (or HyperOS Version) 7-10 times in a row until the “You are a developer” notification appears.
- Return to the main settings menu and open a new Developer section (or additionally → Developer options in HyperOS).
- Scroll down to the Application block and find the Background Process Limit item.
On some models (e.g. Redmi Note 12 or POCO X5), the path may be slightly different. If there is no point, check if the developer mode is on at the top of the screen (the switch should be active).
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Before changing the limit, close all active applications through the multitasking menu – this will help to more accurately assess the effect of new settings.
Recommended limit values for different tasks
There is no universal answer to the question "how much to put" - it all depends on the amount of RAM, the version of the firmware and your style of use. Below is a table with optimal values for scenarios:
| Use case scenario | Recommended limit | Minimum RAM | Side effects |
|---|---|---|---|
| Maximum battery savings | 1-2 process | 4GB | Applications are often rebooted, notifications are delayed |
| Balance of productivity and autonomy | 3–4 process | 6GB | Minor delays in switching between applications |
| Multitasking (social networks, messengers, music) | 5–6 processes | 8GB | Increased battery consumption by 10-15% |
| Games and resource-intensive tasks | No Limitations or 7+ Processes | 12GB | Accelerated battery discharge, possible overheating |
For most Xiaomi users with 6-8 GB of RAM, the optimal value is process 4, which will allow you to keep in mind the main messengers (Telegram, WhatsApp) and social networks, without sacrificing autonomy.
Which apps will be affected by the restrictions
Aggressively restricting background processes can completely disrupt the functionality of some services, especially those that rely on constant synchronization.
- 📱 Messengers: Telegram, Viber, WhatsApp – will stop receiving notifications about new messages if the application is not active.
- 🎵 Music services: Spotify, Yandex Music, Apple Music – tracks will be interrupted when switching to other tasks.
- 📊 Fitness trackers: Google Fit, Mi Fitness – will stop tracking steps and pulse in the background.
- 🔔 Push Notifications: Any applications that use Firebase Cloud Messaging (e.g., banking or email clients).
If you notice that after the change of the limit, notifications from SberBank or Gmail stopped coming, try:
- Add the problem application to Auto Run (Settings section → Applications → Application Management).
- Turn off Battery Optimization in the power settings for it.
- Increase the limit of background processes by 1-2 units.
How to check which applications are being killed by the system?
Features of settings in HyperOS
The new HyperOS firmware, which debuted on Xiaomi 14 and Redmi K70, has made changes to the management of background processes.
- 🔄 Dynamic optimization: the system automatically adjusts the number of processes depending on the load.
- 🛡️ More stringent restrictions for third-party applications (especially on devices with 8GB of RAM and below).
- ⚡ Priority for system services: even with a minimum limit MIUI+ Xiaomi Cloud will continue to work.
HyperOS recommends:
- Not setting a limit below 3 processes can cause the interface to freeze.
- Use the function Intelligent Optimization (included in Settings → Battery).
- For gaming smartphones (Black Shark, POCO F5), disable the limit completely.
Check the firmware version in "About the phone"
Make a backup copy of important data
Close all active applications
Turn off "Intelligent Optimization" in the battery settings
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How to test changes: step-by-step instructions
To objectively assess the impact of the new limit, follow this algorithm:
- Set the baseline: Write down your current battery life (in Settings → Battery → Usage). Run a performance test (AnTuTu or Geekbench) and save the results.
- Apply new settings: Set the selected limit of background processes. Reboot the device (required!).
- Test in real-world conditions: Use your phone as usual for 1-2 days: 🔋 Battery discharge rate ⚡ Delays in opening applications 🔔 Loss of notices
Compare the results
- Repeat the performance test.
- Compare the battery life with the basics.
If you notice that YouTube is constantly reloading videos when switching between apps, and Google Maps loses its location in the background, the limit is too tight. Try increasing it by 1-2 processes.
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On devices with 12+ GB of RAM, limiting background processes has little to no effect on performance, but can significantly improve battery life (up to 20% with a limit of 2-3 processes).
Frequent Mistakes and How to Avoid Them
Many Xiaomi users experience problems after changing the background limit, and here are the most common mistakes and ways to solve them:
⚠️ Warning: If after reducing the limit, the phone began to spontaneously restart, immediately return the value to No Limits and check the device for viruses - this may be a symptom of malware masquerading as system processes.
- 🚫 Too aggressive restrictions on weak devices: On smartphones with 3-4 GB of RAM (for example, Redmi) 9A or POCO C31) The limit of 1 process can lead to launcher freezes and system errors.The minimum safe value for such models is 2 process.
- ⚠️ Ignoring exceptions for critical applications: Even with a hard limit, add instant messengers, banking apps and navigators to AutoRun and Unlimited (in battery settings) or risk missing an important message or alert.
- 🔄 No reboot after changes: New limit settings only apply after the device is fully rebooted!
If you notice that after changing the limit, Mi Video or Gallery have become longer to open, but the battery lasts 15-20% longer, this is a normal compromise, the main thing is that critical functions (calls, SMS, notifications from banks) work steadily.