GPU SmithCOMPUTE ENGINEERING

llm inference capacity planning

1 article

vLLM CUDA Graph Memory Budget: Capture Sizes and KV Headroom

Measure vLLM CUDA graph memory across the lifecycle: graph modes, capture sizes, estimate versus actual pools and KV headroom, with a blank ledger and a 2026 refresh checklist.

November 2, 2026• 26 min read
vllm cuda graph memoryvllm cuda graph capture sizescudagraph_capture_sizes