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This is old. Suspension isn't transparent to the VM which reduces its usefulness. > When you make a suspend request, you send an ACPI suspend signal to the VM
by nerpderp82 4y ago
This is old. Suspension isn't transparent to the VM which reduces its usefulness.
> When you make a suspend request, you send an ACPI suspend signal to the VM instance. If the VM does not respond to the ACPI S3 suspend signal within a couple of minutes, Compute Engine cancels the suspend attempt and returns the VM to a RUNNING state.
- outworlder 4y agoSame as AWS. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-hibernate-overview.html https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance... > When you initiate hibernation, the instance moves to the stopping state. Amazon EC2 signals the operating system to perform hibernation (suspend-to-disk). The hibernation freezes all of the processes, saves the contents of the RAM to the EBS root volume, and then performs a regular shutdown.
- nerpderp82 4y agoI believe under VMWare a suspension is transparent to the OS. The hypervisor just stops running the guest.
- tecleandor 4y agoI guess that time keeping could go crazy if you don't signal the OS to suspend or something like that. I remember some instances (years ago) where a VMWare live migration would make a VM clock jump or do something weird, and the guest OS would... "get scared".