Park in RAM. An engine that can offload itself (ComfyUI, vLLM, SGLang, or any engine that serves the park protocol) moves its weights to system memory on a drain and resumes from there instead of reloading from disk. Berth parks only when the RAM it measures covers the engine plus a floor, and stops parked engines first when memory runs short. Swap numbers On the reference RTX 4090 with 64 GiB of RAM, one chat request through llama-swap, from the request to the reply, lease included (2026-10-23): Switch Time A 21 GB chat model, file in the page cache 5.6 s ComfyUI parks in RAM under 1 s ComfyUI to a 27B chat model 13.6 to 16.3 s Strata's numbers and the method are in Benchmarks Repo: Berth   submitted by   /u/Distinct-Pie2389 [link]   [comments]