Meetup Info

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Agenda

18:00 Networking, food, and drinks
18:30 Presentation
20:00 Beers!

What the CRaC – Superfast JVM startup

2022-10-25 18:00 @ – ,
20 attending

In a world where microservices are more and more a standard architecture for Java based applications running in the cloud, the JVM warmup time can become a limitation. Especially when you look at spinning up new instances of an app as response to changes in load, the warmup time can be a problem. Native images are one solution to solve these problems because their statically ahead of time compiled code simply doesn’t have to warmup and so has short startup time. But even with the shorter startup time and smaller footprint it doesn’t come without a drawback. The overall performance might be slower because of the missing JIT optimizations at runtime. There is a new OpenJDK project called CRaC (Coordinated Restore at Checkpoint) which goal it is to address the JVM warmup problem with a different approach. The idea is to take a snapshot of the running JVM, store it in files and restore the JVM at a later point in time (or even on another machine).

This session will give you a short overview of the CRaC project and shows some results from a proof of concept implementation.

About

The Seattle Java User’s group has been meeting since the mid-90s in the Seattle and Eastside area. It is geared towards topics related to the Java Virtual Machine and languages which run on it such as Java, etc. You can find us on meetup.com/seajug.

SeaJUG is an all volunteer effort – which means items such as the website and mailing list are updated as schedules afford. We meet on the 3rd Tuesday of every month. We need suggestions/volunteers for topics! If you’d like to donate your time/skills to the cause, please contact Nimret Sandhu.

Chair: Nimret Sandhu
Leadership Team: Samantha Berk, Freddy Guime, Ben Garnaat, Jonatan Ivanov
Founder: Jayson Raymond