# Huawei LiteOS Maintenance and Test Guide

-   [CPU Usage](cpu-usage.md)
    -   [Overview](overview.md)
    -   [Development Guidelines](development-guidelines.md)
    -   [Precautions](precautions.md)
    -   [Programming Example](programming-example.md)

-   [Trace](trace.md)
    -   [Overview](overview-0.md)
    -   [Development Guidelines](development-guidelines-1.md)
    -   [Precautions](precautions-2.md)
    -   [Programming Example](programming-example-3.md)

-   [LMS](lms.md)
    -   [Overview](overview-4.md)
    -   [Usage Guidelines](usage-guidelines.md)
    -   [Precautions](precautions-5.md)

-   [Shell](shell.md)
-   [Scheduling Statistics](scheduling-statistics.md)
-   [Memory Debugging](memory-debugging.md)
    -   [Multi-Module Memory Statistics](multi-module-memory-statistics.md)
    -   [Multi-Memory Pool Mechanism](multi-memory-pool-mechanism.md)
    -   [Memory Backup Mechanism](memory-backup-mechanism.md)
    -   [Memory Validity Check](memory-validity-check.md)
    -   [Memory Size Check](memory-size-check.md)
    -   [Memory Leakage Check](memory-leakage-check.md)

-   [Inter-Task Communication Debugging](inter-task-communication-debugging.md)
    -   [Queue Debugging](queue-debugging.md)
    -   [Mutex Debugging](mutex-debugging.md)
    -   [Spinlock Debugging](spinlock-debugging.md)

-   [Usage of Dying Gasp](usage-of-dying-gasp.md)
-   [Usage of Magic Keys](usage-of-magic-keys.md)
-   [Debugging Cases](debugging-cases.md)
    -   [Locating Memory Overwriting Based on Exception Information](locating-memory-overwriting-based-on-exception-information.md)
    -   [Locating Memory Overwriting Based on the Memory Backup Mechanism](locating-memory-overwriting-based-on-the-memory-backup-mechanism.md)
    -   [Locating Memory Overwriting Based on Memory Validity Check](locating-memory-overwriting-based-on-memory-validity-check.md)
    -   [Locating Memory Overwriting Based on Memory Size Check](locating-memory-overwriting-based-on-memory-size-check.md)
    -   [Global Variable Check](global-variable-check.md)
    -   [Task Status Check](task-status-check.md)
