Fixed three bugs that made Qwen3.5-122B a daily driver on Mac Studio

Software Development, AI & Machine Learning, DevOps & Infrastructure(mrzk.io)view on HackerNews
conversational AImodel optimizationperformancestabilityMac StudioQwen 3.5DS4 Flashhybrid attentiondisk KV restorecachemetricsbenchmarking.

Author: marzukia

Date: 7/11/2026

Article Summary:
The author shares their experience with optimizing a conversational AI model on a Mac Studio, replacing the original DS4 Flash model with Qwen 3.5 122B, and fixing three bugs in their serving stack to improve performance and stability.