DevOps & Infrastructure
LLM Observability with Prometheus & Grafana: TTFT, TPS & VRAM Telemetry
Monitor production AI service health: Time to First Token (TTFT < 500ms), Tokens Per Second (TPS), and GPU temperature metrics.
3 min
The Golden Signals of LLM Serving
1. TTFT (Time to First Token): Measures initial latency before streaming starts. 2. TPS (Tokens Per Second): Measures generation velocity. 3. GPU VRAM & Temperature: Prevents thermal throttling and out-of-memory crashes.