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2515b06f19
Instrument the two main downtime-phase operations on the destination side - receiving state and resuming the VM - so their costs are visible in logs and can be iterated on. The new log messages may look like this: ```text cloud-hypervisor: 7.283424s: <vmm> DEBUG:vmm/src/lib.rs:948 -- Migration (incoming): recv_snapshot:3ms restore:10ms cloud-hypervisor: 7.284824s: <vmm> DEBUG:vmm/src/lib.rs:967 -- Migration (incoming): resume:1ms cloud-hypervisor: 7.284842s: <vmm> DEBUG:vmm/src/lib.rs:977 -- Migration (incoming): Receiving final state and resuming the VM took 15ms ``` On-behalf-of: SAP philipp.schuster@sap.com Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>