Qwen3.5-27B, Qwen3.5-122B, and Qwen3.6-35B on 4x RTX 3090 — MoEs struggle with strict global rules

Long-time lurker, first-time poster. Ran three Qwen models through 20+ sessions of live agentic work each on 4x RTX 3090 — Qwen3.5-27B dense, Qwen3.5-122B-A10B MoE, Qwen3.6-35B-A3B MoE. Numbers below parsed from vLLM logs under constant organic load, not synthetic benchmarks. Workload context that matters for every number in this post: the harness is a multi-agent orchestrator running 1-6 concurrent OpenCode sessions with 30-60k-token prompts, and it enforces a tight bash allow-list — exact uv