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[V1][Minor] Enhance SpecDecoding Metrics Log in V1 (#15902)

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Signed-off-by: Woosuk Kwon <woosuk.kwon@berkeley.edu>
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Woosuk Kwon 2025-04-01 23:38:02 -07:00 committed by GitHub
parent 2039c6305b
commit 274d8e8818
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1 changed files with 10 additions and 7 deletions
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17
vllm/v1/spec_decode/metrics.py
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@ -47,13 +47,16 @@ class SpecDecodingMetrics:
num_draft_tokens = np.sum(self.num_draft_tokens)
num_accepted_tokens = np.sum(self.num_accepted_tokens)
draft_acceptance_rate = (num_accepted_tokens / num_draft_tokens
if num_draft_tokens > 0 else float("nan"))
draft_acceptance_rate = (num_accepted_tokens / num_draft_tokens *
100 if num_draft_tokens > 0 else float("nan"))
logger.info(
"Speculative metrics: "
"Draft acceptance rate: %.3f, "
"Number of accepted tokens: %d, "
"Number of draft tokens: %d, ", draft_acceptance_rate,
num_accepted_tokens, num_draft_tokens)
"SpecDecoding metrics: "
"Draft acceptance rate: %.1f%%, "
"Accepted: %d tokens, "
"Drafted: %d tokens",
draft_acceptance_rate,
num_accepted_tokens,
num_draft_tokens,
)
self.reset()