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Comparison to other CR projects (edit)
Revision as of 19:20, 9 December 2015
, 19:20, 9 December 2015added absent architectures for criu
Both tools appear primarily focused on reducing benchmark runtime on slow computer architecture simulators, leveraging sampling algorithms such as SimPoint.
Both tools appear primarily focused on reducing benchmark runtime on slow computer architecture simulators, leveraging sampling algorithms such as SimPoint.
== OpenVZ (in-kernel) ==
Legacy OpenVZ (RHEL4, RHEL5, RHEL6 based kernels) has in-kernel checkpoint/restore, sources can be found in kernel/cpt/.
== CKPT (in-kernel) ==
(In-kernel) [https://ckpt.wiki.kernel.org/index.php/Main_Page Linux Checkpoint/Restart] was a project from around 2008 to around 2010 to implement checkpoint/restart of Linux processes.
== CRIU, DMTCP, BLCR, OpenVZ comparison table ==
== CRIU, DMTCP, BLCR, OpenVZ comparison table ==
|-
|-
| Arch
| Arch
| x86_64, ARM
| x86_64, ARM, AArch64, PPC64le
| x86, x86_64, ARM
| x86, x86_64, ARM
| x86, x86_64, PPC/PPC64, ARM
| x86, x86_64, PPC/PPC64, ARM
|-
|-
| Retains behavior of the c/r-ed programs?
| Retains behavior of the c/r-ed programs?
| {{Yes}}
| {{Yes}} (but see [[What can change after C/R]])
| {{No}}, because of wrappers on system calls
| {{No}}, because of wrappers on system calls
| {{No}}, because of wrappers on system calls
| {{No}}, because of wrappers on system calls
|-
|-
| Live migration
| Live migration
| {{Yes}}, even if kernel, libs, etc are newer. Can use Memory Changes Tracking to decrease freeze time
| {{Yes}}, even if kernel, libs, etc are newer. Can use [[memory changes tracking]] to decrease freeze time
| {{Yes}}, if both kernels are recent
| {{Yes}}, if both kernels are recent
| {{Yes}}, but if all components are the same. Even if prelinked addresses are different, it will not restore, but it can save the whole used libs and localization files to restore program on the different machine
| {{Yes}}, but if all components are the same. Even if prelinked addresses are different, it will not restore, but it can save the whole used libs and localization files to restore program on the different machine