v3.3

KytyPlus v3.3 Release Notes

Overview

v3.3 focuses on stability improvements, better timeout handling, and improved debugging capabilities.

Changes

🔧 GPU & Rendering Improvements

• Fence wait timeouts: Added 10-second timeout to fence waits in CommandBuffer::WaitForFenceOnly() to prevent infinite hangs on driver issues or fence signaling problems.
• Master semaphore timeouts: Added 30-second timeout to MasterSemaphore::Wait() to prevent hanging indefinitely on semaphore wait issues.
• Command buffer reuse: Improved BeginNext() logic with progressive fallback attempts before growing the command buffer pool. Added last-resort wait for master semaphore before creating new buffers.

🔊 Audio Improvements

• Tighter audio buffering: Reduced target latency from 40ms to 30ms for more responsive audio.
• Faster buffer management: Reduced max queued buffers from 16 to 8, decreased wait timeout from 200ms to 100ms, and increased check frequency (500μs sleep vs 1000μs).
• Improved audio underrun handling: More aggressive clearing of queued audio when waiting too long to prevent stutter during heavy GPU load.

🛡️ Debugging & Validation

• Vulkan validation enabled by default: Vulkan validation layers are now enabled by default to catch spec violations, resource state errors, and synchronization issues. This helps identify problems earlier and provides better diagnostic information in logs.
• To disable validation for performance testing, use --vulkan-validation false.

🌐 HTTP/HTTPS

• HTTP busy-loop fix (v3.1, maintained): HttpWaitRequest now sleeps 10ms between polls instead of returning immediately, preventing CPU spinning and excessive log growth. Deadline-based timeout support added.

Known Limitations

• Some games may still not boot or may crash - emulation is beta software
• Vulkan validation adds overhead; may impact performance on some systems
• HTTPS/HTTP functionality is functional but may not work for all game-specific network requests
• Oodle/Kraken decompression remains unsupported in self-contained builds

Upgrade Notes

• Vulkan validation is now enabled by default. If you experience performance issues and your games work fine, you can disable it with --vulkan-validation false.
• The timeout changes should prevent hangs but may change timing slightly in edge cases.

Testing

Tested HTTPS connectivity to:

• google.com ✅
• github.com ✅
• api.github.com ✅
• kytyps5.github.io ✅

TLS 1.2/1.3 support confirmed via mbedTLS configuration

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Thank you to all testers and contributors!