Measuring LLM API performance with traditional HTTP response time metrics gives you a fundamentally misleading picture. This post explains why Time To First Token is the metric that actually reflects user experience, how streaming LLM APIs work under the hood, and how to instrument accurate TTFT measurements using Python, Node.js, and Apache JMeter with the Feather Wand plugin.
Ce sujet de discussion accompagne la publication sur https://qainsights.com/how-to-measure-time-to-first-token-ttft-in-ai-systems/