Unverified50% confidenceFactExact time
In the self-developed Rust LLM inference engine mini-vllm-rs, after prefix caching is enabled, when two completely identical requests arrive simultaneously at a cold cache, possibly not a single token can be reused, and both perform full prefill.
1
Sources
50%
Confidence
Long-term
Relevance
10/16/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedCache-aware routing preferentially sends requests to replicas that already have the same prefix in cache; when the cache is hit, prefill is almost zero, and first-token latency drops significantly.60% similarUnverifiedAt a batch size of 2, the row-by-row GEMV fallback brought throughput back to 16.25 tokens/s, roughly on par with the unbatched baseline of 16.15 tokens/s.59% similarUnverifiedRust's memory safety guarantees are implemented at the compilation stage without relying on garbage collection, so there is no latency jitter caused by GC pauses at runtime.59% similarUnverifiedv2.1.269 fixes an issue where the prompt cache was partially invalidated when a response was truncated upon hitting the output token limit and then automatically continued.58% similarUnverifiedInserting printf during memory consistency debugging introduces additional system calls and memory barriers, which may inadvertently fix missing synchronization and cause the bug to disappear during debugging.58% similar
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