Tracking the system on Xiaomi: a complete guide for users

Tracing systems on Xiaomi devices is a powerful diagnostic tool that allows you to capture all the actions of the MIUI operating system in real time. Many users come across this term when trying to solve problems with performance, freezes or application errors. But what really lies behind this feature? Why can it be useful not only for developers but also for ordinary smartphone owners?

In this article, we will go into detail how tracing works, where it should be used, and, most importantly, how to interpret the data correctly, what system logs can be extracted using tracing, how they help diagnose malfunctions, and what hidden capabilities MIUI opens up when using this tool correctly, and we will also warn against typical errors that can lead to data loss or device failures.

What is a tracing system and why it is needed

Tracing (or trailing) is the process of recording a sequence of events occurring in the operating system. On Xiaomi smartphones, this feature is built into the Android core and extended by the capabilities of the MIUI shell. Unlike conventional logs, which only record critical errors, traceability allows you to track:

• 🔄 Sequence of Function Calls in System and Applications
• ⏱️ Execution time of each process (helps find bottlenecks")
• 📊 Resource utilization: CPU, memory, network, battery
• 🔌 Interactions between components (for example, how an app communicates with Google services)

The main purpose of tracing is to diagnose problems, for example, if your Redmi Note 12 suddenly starts to brake when the camera opens, tracing will help you figure out which process is to blame: the camera app itself, drivers or background services.

• 👨‍💻 Developers to optimize applications under MIUI
• 🛠️ Service centers for repair of "glut" devices
• 🔍 Enthusiasts engaged in customization of firmware

⚠️ Attention: Tracing puts a significant strain on the system, and it is not recommended to turn it on for a long time (more 5-10 minutes – this can cause overheating or rapid battery discharge on models with Snapdragon processors 4xx/6xx.

Types of tracing on Xiaomi: what logs can be obtained

MIUI supports several types of tracing, each of which captures different aspects of the device's operation.

The most versatile tool for ordinary users is Systrace, which provides a comprehensive report on how the system is expending resources at a particular time, for example, if your POCO X5 Pro starts warming up while watching video, Systrace will show which process is to blame: video decoding, interface rendering or background synchronization.

For power users, ATrace can capture the call of specific functions, which helps with debugging custom firmware or modified cores, but requires root rights or ADB connectivity.

How to turn on tracing on Xiaomi: step-by-step instructions

There are a number of ways to activate the tracing, and the easiest way to do that is through a hidden developer menu.

1. Open the Settings. → The phone.
2. Click 7 times on the MIUI version until the notification “You became a developer” appears.
3. Go back to the main settings menu and find a new section for developers.
4. Activate the USB Debugging Switch and Allow OEM Unlock
5. In the Monitoring section, select Enable Tracing or Tracing Record (the name may vary depending on the version of MIUI)

For a deeper diagnosis, you will need to connect to a computer via ADB. Here is the basic command to run the tracing:

adb shell atrace -z -t 10 -o /sdcard/trace.html com.android.systemui

This command will record the trace for 10 seconds and save the result to a trace.html file on the internal drive.

• -t 10 - recording time in seconds
• com.android.systemui – Tracing package (can be replaced by any application)
• -o /sdcard/trace.html – the way to save the result

⚠️ Note: On some models (Redmi) 9A, POCO M3) post-tracing ADB You may be able to reset the debugging settings. USB. Before starting, check that the settings → For developers is a tick Allow debugging (security setting).

Charge your phone at least to 50%|Release. 1-2 GB memory|Disable unnecessary background applications|Connect USB-cable (when used) ADB)|Make a backup copy of important data-->

How to Read and Analyze Tracing Logs

The resulting tracing files (usually.html or.txt) contain a huge amount of data, which can be found on Google Trace Viewer, a special tool for visualizing logs, and can be downloaded from the official Android developer website.

The main elements that should be paid attention to:

• 📈 CPU load schedule – peaks indicate processes that consume a lot of resources
• 🔴 Red lines – errors or delays in operations
• 🔄 Long horizontal bands – processes that block the flow of execution
• 📌 Packet names – show which app is to blame for the problem

For example, if you are analyzing the cause of lags in Mi Video, look in the logs for:

1. Significant delays (over 16 ms) in the com.miui.videoplayer stream
2. Frequent SurfaceFlinger feature call – this may indicate problems with video rendering
3. Peaks of CPU use during playback

For convenience, you can use filters, for example, to see only battery-related events, type in the Trace Viewer search box:

battery|power|wake_lock

💡

If you have a lot of unknown terms in your logs, use the Android Developers documentation or specialized forums like XDA. Often, trace issues on Xiaomi are discussed in model-specific topics (e.g., "Redmi Note 11 Pro+ 5G tracing issues").

Typical problems and their solution through tracing

Let’s look at some real-world scenarios where tracing helps diagnose and fix problems:

1.The smartphone is warming heavily for no apparent reason

Systrace analysis could show that the mediaserver process, which constantly scans files, is to blame.

• Clear the media cache in Settings → Storage → Multimedia Data
• Turn off automatic scanning SD-map

2.Applications are closed spontaneously

In logcat, look for lines with ANR (Application Not Responding) or crash. A common cause is memory shortage.

• Limit background activity in Settings → Battery → Performance Mode
• Disable interface animation through Developer Settings

3. Quick battery discharge in standby mode

Tracing dumpsys battery will show what process wakes the device.

• 📶 NlpWakelock – Problems with Location Detection
• 📱 PhoneWindowManager - Screen Control Errors
• 🔄 SyncManager – Excessive account synchronization

For each of these issues, there are standard solutions that can be found in official Xiaomi documentation or in support forums.

Risks and limitations of tracing

Despite its usefulness, tracing has a number of limitations and potential risks:

• 🔋 Increased power consumption – continuous log writing can drain the battery on the 20-30% hourly
• 📱 Overheating of the processor - especially relevant for budget models (Redmi) A1, POCO C40)
• 📁 Large data volume – an hour of trace can take 1-2 GB memory
• 🔒 Privacy – logs may contain personal information (phone numbers, file paths)

In addition, some devices with MIUI Global Stable may have some trace functions blocked, which can help:

• Switch to MIUI China or Xiaomi.eu (requires unlocking the bootloader)
• Use of custom cores with support for extended tracing
• Connecting with ADB with root rights

⚠️ Note: On devices with HyperOS (the new firmware from Xiaomi), the tracing mechanism has changed. Some old atrace commands may not work. For these models, it is recommended to use perfetto, a new tracing tool from Google, which is supported starting with Android 10. Alternative methods of diagnosis without trace If tracing seems too complicated, you can use simpler tools: 📊 Built-in monitor MIUI: Settings → The phone. → Diagnostics of the system 🔍 Security app: Optimization section shows problem processes 📱 Developer mode: you can see the use of CPU / memory in real time 🛠️ Third-party utilities: CPU Monitor, Battery Historian, DevCheck, and others will be enough for most users. Tracing is necessary only in difficult cases, when standard diagnostic methods do not give results. 💡Before using tracing, always try simpler diagnostic methods. 80% The problem is solved through standard settings. MIUI or reboot. FAQ: Frequent questions about tracing on Xiaomi Can tracing be enabled without developer rights? No, to activate tracing, you must necessarily turn on the developer mode and allow debugging on the device. USB. Without that, the system will block access to diagnostic functions. How do you save trace logs if the phone freezes? If the device is unresponsive, but connected to the PC via a computer? ADB, Follow the command: adb pull /data/anr/traces.txt This will copy the latest logs from the device. ADB does not respond, you will have to do hard reset (click the power button on the 10+ seconds, but the logs are lost. Why is the tracing not running on my Redmi? Possible reasons: Obsolete version MIUI (Update the firmware) No permission to write to the folder /sdcard (Check the permissions) Power saving mode is active (turn it off in the battery settings) There is custom firmware on the device without trace support Can I use tracer to find out who is watching my phone? Trace shows system processes, but can not directly detect spyware. To check for viruses, use specialized antivirus (Malwarebytes, Kaspersky) or check the list of installed applications in Settings. → Please note programs with suspicious permissions (access to the SMS, How to clear trace logs after diagnosis? Logs are stored in several places: /sdcard/traces/ — manually remove via file manager /data/anr/ — Requires root rights for cleaning /data/log/ — system logs, cleared when restarted For complete cleaning, execute the command: adb shell rm -rf /sdcard/traces/*