[CRIU] CRIU VS other approach

[Thouraya TH]

Hi all,

Please, i have a question about the architecture and the use of CRIU.

As I know, the size of a container’s snapshot depends on the size of the
RAM. *The CRIU images contain only what's in memory*, not what's on disk.



Many prefer for *example to snapshot only the layered file system of the
container and* discard the memory, under the assumption that the checkpoint
is smaller this way and it is also faster to restart the container and then
the state saved in the file system.

This is a common approach for container migration.



Please, what’s the motivation of choosing CRIU ?


Thanks a lot for all explanations.

Kind regards.
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