Local Agents Parallelism Test: Batching is Real but Not Free
AIForOver50Plus · reddit · 2026-08-18
Tested whether two local agents hitting the same Qwen 3.8 27B 4bit model on an M3 Max MacBook run in parallel or serially. By using a synchronized load driver, the author confirmed that continuous batching works, allowing agents to share the model. However, concurrency is not free: while total throughput rises with more agents, individual requests get slower and wait longer. The sweet spot was found to be around 4 agents. Notably, pinning a random seed serializes all requests.
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