Checkpoint/restart in the userspace

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One Line Summary

Checkpoint/restart in the userspace


Checkpoint/restart is the ability to save tasks state in some plate to later restore one. There have been several attempts of having this functionality in kernel but none of them succeeded so far. Recently OpenVZ engineers has proposed the mostly-in-the-userspace approach to the problem which looks promising

The aim of the discussion is to find out ways for further c/r implementation.

See also:


kernel, containers, checkpoint

Presentation Materials



  • Biography

    Pavel Emelyanov is a core Virtuozzo and OpenVZ kernel developer working in the project for the last six years. He’s currently the kernel team leader at Parallels and manages the development of all the kernel features for OpenVZ and Parallels Virtuozzo Containers. Pavel is also a prolific mainstream kernel contributor. He holds a PhD degree in Applied Mathematics from the Moscow Institute of Physics and Technology.

  • Kir Kolyshkin



    Kirill Kolyshkin was named leader and project manager for the OpenVZ project in 2005 to further the adoption of containers virtualization for Linux. He spearheads the overall development and manages all key architecture, updates and feature upgrades for OpenVZ. Kolyshkin has more than 10 years Linux experience and has long been an active open source advocate. He is a frequent speaker about virtualization technology and his 15-years career experience includes positions in information technology at Deutsche Bank and telecommunications company, Severtelecom. He holds a degree in Computer Science from the Ukhta State Technical University.