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Revision as of 02:07, 8 April 2013

Download
Tarball: criu-4.0.tar.gz
Version: 4.0 "CRIUDA"
Released: 20 Sep 2024
GIT tag: v4.0
InstallationUsage
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.


Using

Installation
What to do to have CRIU on your system
Usage
How to run the tool
Usage scenarios
Ideas how crtools 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.
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 crtools code paths
How to submit patches

Events
Feed-icon.svg RSSAtom


LinuxDays 2024

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13 Oct 2024, On the Edge of Tomorrow: Checkpoint/Restore in Containers


Kubernetes Community Days Austria

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09 Oct 2024, Forensic container checkpointing and analysis


Linux Plumbers Conference 2024

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18-20 Sep 2024, Containers and Checkpoint/Restore Microconference

Other talks:
* Userspace memory persistence over kexec
* Checkpoint/Restore In eBPF (CRIB)




Under the hood

External links

More external articles...

Other