# `Feline.Processors.Metrics`
[🔗](https://github.com/dimamik/feline/blob/main/lib/feline/processors/metrics.ex#L1)

Calculates Time-To-First-Byte (TTFB) metrics for LLM and TTS.

Tracks the time between an LLM context request and the first LLM token,
and between the first LLM token and the first TTS audio chunk. Emits
`MetricsFrame` and `:telemetry` events for each measurement.

# `child_spec`

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*Consult [api-reference.md](api-reference.md) for complete listing*