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Add first-bot-speech latency to UserBotLatencyObserver

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Measure time from ClientConnectedFrame to first BotStartedSpeakingFrame,
emitting a one-time on_first_bot_speech_latency event with breakdown.
This commit is contained in:
Mark Backman
2026-03-01 09:11:10 -05:00
parent 18155b6a63
commit ddba1b84a9
5 changed files with 174 additions and 16 deletions
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changelog/3885.added.2.md Normal file
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- Added `on_first_bot_speech_latency` event to `UserBotLatencyObserver` measuring the time from client connection to first bot speech, including a latency breakdown with per-service metrics.

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changelog/3885.added.md
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- Added `LatencyBreakdown` dataclass and `on_latency_breakdown` event to `UserBotLatencyObserver` for per-service latency metrics (TTFB, text aggregation, user turn duration) collected during each user-to-bot response cycle.
- Added `on_latency_breakdown` event to `UserBotLatencyObserver` providing per-service TTFB, text aggregation, and user turn duration metrics for each user-to-bot response cycle.