Add FLOP_EFFICIENCY eviction policy for prefix caching#3923
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lmcafee-nvidia wants to merge 6 commits intoNVIDIA:mainfrom
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Add FLOP_EFFICIENCY eviction policy for prefix caching#3923lmcafee-nvidia wants to merge 6 commits intoNVIDIA:mainfrom
lmcafee-nvidia wants to merge 6 commits intoNVIDIA:mainfrom
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Implements a FLOP-aware eviction policy (inspired by Marconi, arxiv 2411.19379) that combines recency and per-block FLOP efficiency into a utility score. Blocks representing longer prefixes save more FLOPs per byte of cache and are preferentially retained under memory pressure. The utility score is: recency + alpha * flop_efficiency, both normalized to (0,1) via min-max across cached blocks. Alpha is configurable via --inference-dynamic-batching-prefix-caching-flop-alpha (default 1.0). Setting alpha=0 falls back to pure LRU behavior. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
…e above FLOP-specific tests Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replace test_flop_efficiency_prefers_longer_prefix and test_flop_efficiency_alpha_zero_fallback with a single test_flop_efficiency_eviction_ordering parameterized over alpha (0.0/1.0/100.0) to demonstrate all 3 eviction regimes: oldest-first, medium-first, and shallowest-first. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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/ok to test 42d89dd |
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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/ok to test 5399cc7 |
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Summary
FLOP_EFFICIENCYeviction policy that prioritizes evicting blocks based on computational cost efficiencyTest plan
test_dynamic_prefix_caching.pypass🤖 Generated with Claude Code