AWS Lambda SnapStart for Java
Experience the dramatic performance improvement of ALambda SnapStart through our interactive demo, then dive deep into implementation strategies.
See SnapStart in Action
See how moving initialization to deployment time transforms performance. Now at invoke time it doesn't need to do any class loading or just in time compilation (JIT) which have been costly on cold-start performance.
On-Demand Lambda
Cold start
SnapStart Lambda
Pre-initialized snapshot
What Happens at Deployment Time?
With SnapStart, the expensive initialization steps are moved to deployment time, creating a snapshot that can be quickly restored for each request.
Deployment Phase (Happens Once)
These steps run when you deploy your function, not during requests
Initialization Steps:
Benefits:
- JIT compilation happens once, not per request
- Database connections are pre-established
- AWS SDK clients are ready to use
- Application state is preserved in memory
Master Lambda SnapStart Optimization
Get comprehensive guidance on optimizing your Java Lambda functions for SnapStart in "The Lambda Handbook for Java Developers". Learn advanced techniques, best practices, and real-world implementation strategies.
Get the BookWhat You'll Learn in the Book
"The Lambda Handbook for Java Developers" provides comprehensive coverage of SnapStart optimization techniques: