AI Briefingeagworks migrates LangGraph workflows to AgentCore Runtime, reducing TTFT p95 by 5.5 seconds
·2026.10.26 21:09
Key point
Migrated LangGraph workflows without rewriting to mitigate high-concurrency latency.
Details
- Migrated the execution environment to Amazon Bedrock AgentCore Runtime without rewriting existing LangGraph workflows
- TTFT p95 at concurrency 16 was reduced by approximately 5.5 seconds compared to the previous ECS single setup, achieving performance on par with ECS scaleout
- Cold start delays (9.5–10.8 seconds) occurred due to pre-warmed capacity being exceeded during sudden spikes in new sessions, mitigated by image lightweighting
- Established a latency and error root-cause tracking system by linking Langfuse and CloudWatch structured logs via trace_id and job_id
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