3 ms·
This is called application or process checkpointing. There are/were lots of attempts to get it working under linux, some are more some less complete. It was a h
by phaker 13y ago
This is called application or process checkpointing. There are/were lots of attempts to get it working under linux, some are more some less complete. It was a hot topic several years ago, but the interest sort of fizzled out since then because virtual machines sovle the same problem. A vm has more overhead but freezing a vm is also much more reliable.
This wikipedia article mentions few approaches: http://en.wikipedia.org/wiki/Application_checkpointing http://en.wikipedia.org/wiki/Application_checkpointing
This page has many more projects, though most are probably dead by now: http://checkpointing.org/ http://checkpointing.org/
Both are incomplete, googling "linux checkpointing" returns things not mentioned in either, like https://ckpt.wiki.kernel.org/index.php/Main_Page https://ckpt.wiki.kernel.org/index.php/Main_Page
- jevinskie 13y agoYep, this is very important for grid computing where a user may log into an organization's workstation and the grid job running on the workstation needs to be evicted. With process checkpointing, you can resume the work later (perhaps even on another node). Without it, all of the intermediate progress is discarded.