Building py-kvcache: A Performance Characterization of External KV Caching for vLLM with NVMe SSDs
KV cache offloading is the frontier for long-context inference cost. This work shows that the I/O scheduling matters as much as raw bandwidth, and py-kvcache's preloading strategy is a genuine improvement. If you're running vLLM for long-context workloads, this is worth benchmarking against LMCache. It's infrastructure, not research.