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server-bench : add speed-bench for speculative decoding benchmarking (#23869)

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* spec: add speed-bench support for benchmarking

* speed-bench : add trailing newline to requirements.txt

* speed-bench : bump datasets to 4.8.0 to fix ty check

* server-bench : remove now-unused type: ignore after datasets bump
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Ruixiang Wang
2026-05-29 23:09:47 +02:00
committed by GitHub
parent 5a46b46acd
commit 689a9a470e
7 changed files with 643 additions and 2 deletions
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docs/speculative.md
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@@ -323,3 +323,8 @@ statistics ngram_map_k: #calls(b,g,a) = 6 1690 26, #gen drafts = 26, #acc drafts
- `#gen tokens`: number of tokens generated by this implementation (including rejected tokens)
- `#acc tokens`: number of tokens accepted by the main model
- `dur(b,g,a): durations of begin (new prompt), generation and accumulation (process acceptance).
## Benchmarking
To measure the end-to-end effect of speculative decoding (throughput, latency, and draft acceptance) across diverse prompts, see the SPEED-Bench client in [tools/server/bench/speed-bench](../tools/server/bench/speed-bench/README.md).
It runs against a running `llama-server` and can compare a baseline run against a speculative-decoding run.