Re:LLM Inference Handbook
by criemen on Friday July 11, 2025 @04:18PM
(#44536421)
Thanks a lot for putting this together!
I have a question. In https://github.com/bentoml/llm-inference-in-production/blob/...,
you have a single picture that defines TTFT and ITL.
That does not match my understanding (but you guys know probably more than me): In the graphic, it looks like that the model is generating 4 tokens T0 to T3, before outputting a single output token.
I'd have expected that picture for ITL (except that then the labeling of the last box is off), but for TTFT, I'd have expected that there's only a single token T0 from the decode step, that then immediately is handed to detokenization and arrives as first output token (if we assume a streaming setup, otherwise measuring TTFT makes little sense).
I have a question. In https://github.com/bentoml/llm-inference-in-production/blob/..., you have a single picture that defines TTFT and ITL. That does not match my understanding (but you guys know probably more than me): In the graphic, it looks like that the model is generating 4 tokens T0 to T3, before outputting a single output token.
I'd have expected that picture for ITL (except that then the labeling of the last box is off), but for TTFT, I'd have expected that there's only a single token T0 from the decode step, that then immediately is handed to detokenization and arrives as first output token (if we assume a streaming setup, otherwise measuring TTFT makes little sense).