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[Metrics] Add bucket for request_latency, time_to_first_token and time_per_output_token (#15202)

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Signed-off-by: Kay Yan <kay.yan@daocloud.io>
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Kay Yan 2025-04-07 11:34:51 +08:00 committed by GitHub
parent 2549c0dfef
commit 86fc2321ff
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2 changed files with 8 additions and 6 deletions
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7
vllm/engine/metrics.py
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@ -156,7 +156,8 @@ class Metrics:
labelnames=labelnames,
buckets=[
0.001, 0.005, 0.01, 0.02, 0.04, 0.06, 0.08, 0.1, 0.25, 0.5,
0.75, 1.0, 2.5, 5.0, 7.5, 10.0
0.75, 1.0, 2.5, 5.0, 7.5, 10.0, 20.0, 40.0, 80.0, 160.0, 640.0,
2560.0
])
self.histogram_time_per_output_token = self._histogram_cls(
name="vllm:time_per_output_token_seconds",
@ -164,14 +165,14 @@ class Metrics:
labelnames=labelnames,
buckets=[
0.01, 0.025, 0.05, 0.075, 0.1, 0.15, 0.2, 0.3, 0.4, 0.5, 0.75,
1.0, 2.5
1.0, 2.5, 5.0, 7.5, 10.0, 20.0, 40.0, 80.0
])
# Request stats
# Latency
request_latency_buckets = [
0.3, 0.5, 0.8, 1.0, 1.5, 2.0, 2.5, 5.0, 10.0, 15.0, 20.0, 30.0,
40.0, 50.0, 60.0
40.0, 50.0, 60.0, 120.0, 240.0, 480.0, 960.0, 1920.0, 7680.0
]
self.histogram_e2e_time_request = self._histogram_cls(
name="vllm:e2e_request_latency_seconds",

7
vllm/v1/metrics/loggers.py
View File

@ -239,7 +239,8 @@ class PrometheusStatLogger(StatLoggerBase):
documentation="Histogram of time to first token in seconds.",
buckets=[
0.001, 0.005, 0.01, 0.02, 0.04, 0.06, 0.08, 0.1, 0.25, 0.5,
0.75, 1.0, 2.5, 5.0, 7.5, 10.0
0.75, 1.0, 2.5, 5.0, 7.5, 10.0, 20.0, 40.0, 80.0, 160.0,
640.0, 2560.0
],
labelnames=labelnames).labels(*labelvalues)
@ -249,13 +250,13 @@ class PrometheusStatLogger(StatLoggerBase):
documentation="Histogram of time per output token in seconds.",
buckets=[
0.01, 0.025, 0.05, 0.075, 0.1, 0.15, 0.2, 0.3, 0.4, 0.5,
0.75, 1.0, 2.5
0.75, 1.0, 2.5, 5.0, 7.5, 10.0, 20.0, 40.0, 80.0
],
labelnames=labelnames).labels(*labelvalues)
request_latency_buckets = [
0.3, 0.5, 0.8, 1.0, 1.5, 2.0, 2.5, 5.0, 10.0, 15.0, 20.0, 30.0,
40.0, 50.0, 60.0
40.0, 50.0, 60.0, 120.0, 240.0, 480.0, 960.0, 1920.0, 7680.0
]
self.histogram_e2e_time_request = \
prometheus_client.Histogram(