Advanced Topics

Advanced configuration, modding support, and technical deep-dives for power users and developers

Advanced Configuration

Custom Configuration Files

suyu supports advanced configuration through custom configuration files and command-line parameters.

Config Location: %APPDATA%/suyu/config/ (Windows)
Linux Config: ~/.config/suyu/
Custom Settings: Edit qt-config.ini for advanced options

Performance Tuning

CPU Optimization

CPU Accuracy: Adjust between Auto, Accurate, and Unsafe for performance vs accuracy trade-offs
Multicore: Enable multicore CPU emulation for better performance on multi-threaded systems
Unsafe Optimizations: Enable for maximum performance (may cause instability)

GPU Optimization

GPU Accuracy: Normal, High, or Extreme accuracy levels
Async GPU: Enable asynchronous GPU emulation for better performance
Shader Cache: Precompiled shader cache management and optimization

Modding and Homebrew

Mod Installation

Navigate to File → Install Files to NAND
Select your mod files (NSP format recommended)
Restart suyu to apply changes
Enable mods in Emulation → Configure → General → Patches

Homebrew Support

suyu supports running homebrew applications and development tools.

NRO Files: Directly executable homebrew applications
Development Mode: Enable developer options for homebrew testing
Debug Features: Access to debugging tools and logging

Technical Deep-Dives

Emulation Architecture

Understanding suyu's emulation architecture can help with troubleshooting and optimization.

HLE (High-Level Emulation): System service emulation for compatibility
LLE (Low-Level Emulation): Hardware-level emulation for accuracy
JIT Compilation: Just-in-time compilation for ARM64 code execution
GPU Emulation: Vulkan/OpenGL translation layer

Debugging and Logging

Advanced debugging features for developers and power users.

Log Levels: Configure logging verbosity (Trace, Debug, Info, Warning, Error)
Performance Metrics: Enable FPS counter, frame time graphs, and CPU/GPU usage
Memory Debugging: Memory usage tracking and leak detection
Crash Dumps: Automatic crash dump generation for debugging

Command Line Usage

suyu supports various command-line arguments for automation and advanced usage.

suyu.exe [options] [game_path]
 

                                        Options:

                                          -f, --fullscreen    Start in fullscreen mode

                                          -g, --game <path>   Load game from specified path

                                          -c, --config <path> Use custom configuration file

                                          --log-level <level> Set logging level (0-5)

                                          --version           Show version information

                                          --help              Show help message

Advanced Troubleshooting

Performance Issues

Shader Compilation: First-time shader compilation causes stuttering - this is normal
CPU Bottlenecks: Monitor CPU usage and adjust accuracy settings
Memory Issues: Ensure sufficient RAM and close unnecessary applications
GPU Driver Issues: Update graphics drivers and check compatibility

Compatibility Issues

Game-Specific Settings: Some games require specific configuration tweaks
Firmware Compatibility: Ensure firmware version matches game requirements
Region Settings: Configure correct region and language settings
Save Data Issues: Backup and restore save data when troubleshooting

⚠️ Advanced User Warning

The settings and procedures described in this section are intended for advanced users. Incorrect configuration may cause instability, crashes, or other issues. Always backup your configuration and save data before making advanced changes.