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CRIU: History, Applications & Art

Checkpoint/Restore In Userspace (CRIU) (pronounced kree-oo, /kriu/), is a software tool for the Linux operating system. Using this tool, it is possible to freeze a running application (or part of it) and checkpoint it to persistent storage as a collection of files. One can then use the files to restore and run the application from the point it was frozen…

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CRIU topic overview

The analysis highlights History, Applications and Art as prominent areas in the source structure around CRIU.

Related topics
25
Source areas
3
Connected nodes
28
Extracted relationships
31
Related term clusters
15
Bridge connections
28

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Use · 20 topics
Overview · 3 topics
History · 2 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Developer
OpenVZ Team at Virtuozzo
License
GNU GPL v.2
Operating system
Linux
Platform
x86-64, ARM, Power ISA, IBM System/390
Release
23 July 2012; 14 years ago (2012-07-23)
Repository
github.com/checkpoint-restore/criu

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Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Use

For the semantics nerds

You can skip this section if you’re here for content ideas and keyword inspiration.

Advanced semantic analysis

How CRIU connects Entity context

The extracted context around CRIU shows recurring relationship patterns in the source. For example, CRIU → ARM, ESTABLISHED, FIFOsUnix, GID, IPCTimersSignalsTerminalsLinux, OpenVZ, PIDs, Processes, SID, System, TCP, The CRIU, Though, UID Another extracted example is CRIU → Andrew Morton, In September, July, Linux, Linux Plumbers Conference, OpenVZ, Pavel Emelyanov. Use these groups to spot repeated connection types before inspecting the individual relationships.

CRIU

Top relations

related to Use · 14
CRIU → ARM, ESTABLISHED, FIFOsUnix, GID, IPCTimersSignalsTerminalsLinux, OpenVZ, PIDs, Processes, SID, System, TCP, The CRIU, Though, UID
related to history · 7
CRIU → Andrew Morton, In September, July, Linux, Linux Plumbers Conference, OpenVZ, Pavel Emelyanov
Developer · 1
CRIU → OpenVZ Team at Virtuozzo
License · 1
CRIU → GNU GPL v.2
Operating system · 1
CRIU → Linux
Platform · 1
CRIU → x86-64, ARM, Power ISA, IBM System/390
Release · 1
CRIU → 23 July 2012; 14 years ago (2012-07-23)
Repository · 1
CRIU → github.com/checkpoint-restore/criu
Stable release · 1
CRIU → 4.2 (November 13, 2025; 9 months ago (2025-11-13)) [±]
Type · 1
CRIU → Application checkpointing

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

linux restore project kernel checkpoint tcp application tool openvz feature files migration system running connection use team operating x86-64 arm

CRIU relationships Subject–Predicate–Object triples

TTTA extracted 31 structured relationships around CRIU. Examples in this analysis include CRIU → Developer → OpenVZ Team at Virtuozzo and CRIU → License → GNU GPL v.2. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
CRIUDeveloperOpenVZ Team at Virtuozzo1.00infobox
CRIULicenseGNU GPL v.21.00infobox
CRIUOperating systemLinux1.00infobox
CRIUPlatformx86-64, ARM, Power ISA, IBM System/3901.00infobox
CRIURelease23 July 2012; 14 years ago (2012-07-23)1.00infobox
CRIURepositorygithub.com/checkpoint-restore/criu1.00infobox
CRIUStable release4.2 (November 13, 2025; 9 months ago (2025-11-13)) [±]1.00infobox
CRIUTypeApplication checkpointing1.00infobox
CRIUWebsitecriu.org1.00infobox
CRIUWritten inC and Assembly1.00infobox
CRIUrelated to historyLinux0.60section
CRIUrelated to historyPavel Emelyanov0.60section

Related concept clusters Related term clusters

The concept neighborhoods around CRIU bring nearby vocabulary together. In this analysis, examples include Operating, Software and Team. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • CRIU
    • Operating
    • Software
    • Team
    • Openvz
    • System
    • Tool
    • Linux
    • Project
    • Kernel
    • Restore
    • Arm
    • Developers
  • criu
    • Operating
    • Software
    • Team
    • Openvz
    • System
    • Tool
    • Linux
    • Project
    • Kernel
    • Restore
    • Arm
    • Developers
  • linux
    • System
    • Version
    • Tcp
    • Arm
    • Operating
    • Presented
    • September
    • Software
    • X86-64
    • Kernel
    • Connection
    • Mainline
  • x86-64
    • Arm
    • System
    • Version
    • Application
    • Tcp
    • Developers
    • Initial
    • Linux
    • Operating
    • Presented
    • Processes
    • Required
  • arm
    • X86-64
    • System
    • Version
    • Tcp
    • Developers
    • Initial
    • Linux
    • Operating
    • Presented
    • Processes
    • Required
    • September
  • system capabilities
    • Arm
    • X86-64
    • Version
    • Application
    • Tool
    • Tcp
    • Developers
    • Initial
    • Kernel
    • Presented
    • Processes
    • Required
  • system v ipc
    • Arm
    • X86-64
    • Version
    • Application
    • Tool
    • Tcp
    • Developers
    • Initial
    • Kernel
    • Presented
    • Processes
    • Required
  • linux kernel mainline
    • Required
    • Network
    • System
    • Version
    • Mainline
    • Tcp
    • Arm
    • Operating
    • Presented
    • September
    • Software
    • X86-64

Connections between topic areas Semantic bridges

For CRIU, one of the stronger structural bridges in this analysis connects CRIU with Use. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
CRIU — Use · splits 8 ⟂ 21
CRIU — Overview · splits 25 ⟂ 4
CRIU — History · splits 26 ⟂ 3

Map overview Semantic statistics

CRIU

Nodes29
Edges28
Triples31
Avg. degree1.93
Density0.068966
Components1

Source & methodology

TTTA analyzes the structure around CRIU to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Applications & Art, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — CRIU · EN edition · Analysis: TopicsToTalkAbout

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