https://github.com/fizzed/nitro
Alternative OpenJDK builds for architectures such as riscv64
https://github.com/fizzed/nitro
Last synced: 9 months ago
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Alternative OpenJDK builds for architectures such as riscv64
- Host: GitHub
- URL: https://github.com/fizzed/nitro
- Owner: fizzed
- Created: 2023-01-10T20:51:59.000Z (almost 3 years ago)
- Default Branch: master
- Last Pushed: 2023-11-29T22:41:21.000Z (about 2 years ago)
- Last Synced: 2025-03-27T03:51:21.578Z (10 months ago)
- Language: Shell
- Size: 1.7 MB
- Stars: 9
- Watchers: 3
- Forks: 0
- Open Issues: 0
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Metadata Files:
- Readme: README.md
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README
# Nitro OpenJDK Builds by Fizzed
## Overview
Optimized OpenJDK builds for riscv64 architecture!
Most popular ways of installing the JDK do not provide riscv64 builds. If they are provided (such as via debian or
ubuntu), as of 2023, those are with the "Zero VM" which runs in interpreted mode. That mode offers terrible performance.
As of Java 19, the JIT compiler has been ported to risv64, providing significant performance boosts compared to the
"Zero VM".
## Sponsorship & Support
Project by [Fizzed, Inc.](http://fizzed.com) (Follow on Twitter: [@fizzed_inc](http://twitter.com/fizzed_inc))
**Developing and maintaining opensource projects requires significant time.** If you find this project useful or need
commercial support, we'd love to chat. Drop us an email at [ping@fizzed.com](mailto:ping@fizzed.com)
Project sponsors may include the following benefits:
- Priority support (outside of Github)
- Feature development & roadmap
- Priority bug fixes
- Privately hosted continuous integration tests for their unique edge or use cases
## Install
To use a simple bootstrap script that installs the jdk to /usr/lib/jvm and sets up your PATH and environment variables:
curl -s https://raw.githubusercontent.com/jjlauer/provisioning/master/linux/bootstrap-java.sh | sudo sh
Alternatively, just download the tarballs and do this yourself. They are all published to the "v1" release in this
GitHub repository.
## Building
If you're interested in building this yourself, this repository is setup for an x86_64 host + docker. There are some
automated scripts that will setup a docker container w/ the necessary dependencies to build the OpenJDK w/ the riscv64
toolchain, and cross compile it. It takes around 3 minutes to build on an AMD 7950x.
java -jar setup/blaze.jar setup/blaze.java build_containers
java -jar setup/blaze.jar setup/blaze.java build_jdk19s
Once done building, the ./target/ directory will contain a .tar.gz ready for deployment.