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# CRaCing Java Snapshots


- **Date:** Friday, Jul 11, 2025
- **Time:** 14:20–14:50 (30 min)
- **Room:** Stage 10
- **Event:** World Congress 2025
- **Tags:** docker, java, performance, spring

## Recording

[Watch recording](https://www.wearedevelopers.com/videos/1440-cracing-java-snapshots)

## Description

Imagine your Java application starting up in just 5 milliseconds. Sounds incredible, right? Almost too good to be true? And no, this isn’t about native images. There's an innovative solution called Coordinated Restore at Checkpoint (CRaC).

Initially, this concept emerged from the Linux CRIU project: Checkpoint/Restore In Userspace. However, CRIU doesn't always deliver reliable results. That’s where CRaC comes in, offering a JVM-specific implementation.

In this talk, we’ll look into the complexities of CRIU and after that, we will turn to CRaC. We will discuss how CRaC operates within the Java ecosystem, its integration with Spring, and how you can use it in your own applications for near-instant startup times.

From this talk you will learn what is possible to CRaC and what is not, what are the benefits and limitations, and what is the cost of CRaC-ing.

## Speaker

### [Pasha Finkelshteyn](https://www.wearedevelopers.com/@pasha-finkelshteyn)

Developer Advocate, BellSoft


## Related talks at this congress

- [High performance Serverless Java on AWS](https://www.wearedevelopers.com/events/world-congress-2025/sessions/623-high-performance) — Vadym Kazulkin
- [Like Spring, but Faster: The new Java Jedi](https://www.wearedevelopers.com/events/world-congress-2025/sessions/563-like-spring-but) — Eric Deandrea
- [Developer Joy with Quarkus](https://www.wearedevelopers.com/events/world-congress-2025/sessions/498-developer-joy-with) — Daniel Oh
- [What's (new) with Spring Boot and Containers?](https://www.wearedevelopers.com/events/world-congress-2025/sessions/883-what-s-new-with) — Eva Panadero, maeddes