AI article

KV cache and continuous batching: 1,000 people ask AI

Community description: How one AI server answers 1,000 people at once: the KV cache and continuous batching. Our toy-model lab: 567 ms to 39 ms, median first-token wait 452 s to 14 s.

Dev.to | Nov 9, 2026 | System Design Simple

Automated excerpt

Time to first token (TTFT): the time from sending a request until the first output token is ready. The cache only removes the recomputation of old tokens. The Hugging Face Transformers cache explanation page.

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