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Welcome to CRIU, a project to implement checkpoint/restore functionality for Linux in userspace.
Using
- CR tools
- Main checkpoint/restore utility description (sort of HOWTO)
- Usage scenarios
- Ideas how crtools can be used (some are crazy indeed)
- What software is supported
- Describes TODO list in higher level terms
Developing
If you're interested in CRIU development, subscribe to the criu mailing list: https://openvz.org/mailman/listinfo/criu
- Images
- Description of image files format
- Commits
- Mainline kernel commits tracker
- ZDTM
- Zero downtime test suite
- TODO
- Current TODO list
External links
- 2025-11-17, Engine-Agnostic Model Hot-Swapping for Cost-Effective LLM Inference
- 2025-08-13, Software Availability Protection in Cyber-Physical Systems
- 2025-07-14, PhoenixOS: Concurrent OS-level GPU Checkpoint and Restore with Validated Speculation
- 2025-06-18, Improving Checkpoint/Restore Functionality in Kubernetes
- 2025-06-17, LWN.net: A parallel path for GPU restore in CRIU
- 2025-06-13, Kubernetes Scheduling with Checkpoint/Restore: Challenges and Open Problems
Under the hood
Articles about how things are done in crtools