Capability
Cost Optimized Storage Tier Management
7 artifacts provide this capability.
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1
SGLangFramework44/100
via “multi-tier kv cache storage with hicache and storage backends”
Fast LLM/VLM serving — RadixAttention, prefix caching, structured output, automatic parallelism.
Unique: Implements a three-tier storage hierarchy (GPU VRAM → CPU RAM → NVMe) with predictive migration logic that monitors access patterns and proactively moves data between tiers. Includes configurable storage backends and transfer optimization for each tier boundary.
vs others: Enables serving sequences 2-4x longer than vLLM on the same hardware by intelligently spilling to CPU/NVMe, with prefetching logic that hides transfer latency for predictable access patterns.