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Home/Glossary/Continuous versus static batching

Batching

Continuous versus static batching

What it is

Static batching fixes a request group until every sequence in that group finishes. Continuous batching replaces completed sequences at iteration boundaries while other sequences continue.

Why it moves cost and latency

Static scheduling can suit uniform offline work, while continuous scheduling often uses capacity better under mixed interactive lengths. Queue policy, shape variance, and latency objectives decide the fit.

What it looks like in practice

Benchmarks compare both with identical prompts, outputs, concurrency boundaries, and hardware. Operators inspect throughput and tail latency rather than naming a universal winner.

Related terms

  • Continuous batching->
  • Chunked prefill->
  • In-flight batching->
  • Offline batch inference->

Questions this definition answers

What does Continuous versus static batching mean in inference serving?

Static batching fixes a request group until every sequence in that group finishes. Continuous batching replaces completed sequences at iteration boundaries while other sequences continue. Benchmarks compare both with identical prompts, outputs, concurrency boundaries, and hardware. Operators inspect throughput and tail latency rather than naming a universal winner.

Why can Continuous versus static batching move cost or latency?

Static scheduling can suit uniform offline work, while continuous scheduling often uses capacity better under mixed interactive lengths. Queue policy, shape variance, and latency objectives decide the fit.

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