CRIU

Revision as of 07:37, 24 September 2013 by Xemul (talk | contribs) (+ RPC link)
Download
Tarball: criu-4.0.tar.gz
Version: 4.0 "CRIUDA"
Released: 20 Sep 2024
GIT tag: v4.0
Installation • Usage
Releases

Welcome to CRIU, a project to implement checkpoint/restore functionality for Linux in userspace.

Checkpoint/Restore In Userspace, or CRIU (pronounced kree-oo, IPA: /krɪʊ/, Russian: криу), is a software tool for Linux operating system. Using this tool, you can freeze a running application (or part of it) and checkpoint it to a hard drive as a collection of files. You can then use the files to restore and run the application from the point it was frozen at. The distinctive feature of the CRIU project is that it is mainly implemented in user space.

http://static.openvz.org/criu_88x31.gif is a project of http://static.openvz.org/openvz_88x31.gif and is sponsored and supported by http://static.openvz.org/parallels_88x31.gif


Using

Installation
What to do to have CRIU on your system
Usage
How to run the tool
RPC
CRIU's API also includes an RPC service
Usage scenarios
Ideas how criu can be used (some are crazy indeed)
What software is supported
Describes TODO list in higher level terms
Category:HOWTO
Collection of real world examples of how to use CRIU. Some are complex, some are not. HOW TO dump a simple loop might be the best one to start with.
What can change after C/R
CRIU cannot (yet) save and restore every single bit of tasks' state. This page describes what bits visible through standard kernel API are such.

Developing

If you're interested in CRIU development, please subscribe to the criu mailing list: http://lists.openvz.org/mailman/listinfo/criu

Images
Description of image files format
Commits
Mainline kernel commits tracker
Manpages
Kernel's manpages commits tracker
ZDTM Test Suite
Zero downtime test suite
TODO
Current TODO list
Postulates
What to keep in mind when writing new code
Code coverage results
Shows how zdtm run covers the criu code paths
How to submit patches


Other

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