Why AWS Lambda Cold Starts Can Spike Your Go API Response Time to 800ms

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AWS Lambda functions written in Go may appear fast under normal conditions, often logging response times as low as 12ms, but can experience dramatic latency spikes reaching 800ms. This phenomenon, known as a cold start, occurs when a Lambda function is invoked after being idle, forcing the cloud environment to initialize a new execution container from scratch. The gap between measured and real-world performance can mislead developers into underestimating their API's latency profile. Understanding cold start arithmetic is critical for engineers building serverless Go services on AWS who require consistently low response times.

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Guide: Migrate Laravel 13 and Next.js App to Zero-Downtime VPS Deployments

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

Design skills dominate Claude Code's fastest-rising installs, data shows

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ProgrammingDEV Community ·

NVIDIA Triton Inference Server: Open-Source Tool to Speed Up AI Model Deployment

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