How I built an AWS Lambda clone with Firecracker microVMs
The article discusses the creation of a serverless runtime using Firecracker microVMs, aimed at improving cold start times. It details the architectural decisions made to enhance performance while maintaining isolation. Key optimizations include snapshot reuse and reduced inter-process communication overhead.
- ▪The project aims to understand the execution layer of AWS Lambda functions and improve cold start times.
- ▪By using VM snapshots, the system can restore from a snapshot in 1-5ms compared to a full cold boot taking 200ms.
- ▪The architecture consists of a control plane for function deployment and a microVM runtime for executing user handlers.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3943230) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Vivek jadhav Posted on May 21 How I built an AWS Lambda clone with Firecracker microVMs #linux #infrastructure #serverless #firecracker Ever wondered what actually happens when you invoke a Lambda function? Not the API layer but the execution layer. What runs your code, how it's isolated, and how AWS gets cold starts low enough to be usable? I wanted to understand that deeply. So I built it.
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