mirror of
https://github.com/cloud-hypervisor/cloud-hypervisor.git
synced 2026-08-05 02:19:16 +00:00
94f78e5a96
Add migration-level context types that extend the existing memory-only metrics with overall migration duration and downtime breakdown. OngoingMigrationContext models the sender-side migration progress until all inputs needed for final downtime accounting are available. CompletedMigrationContext then stores the finalized migration metrics, including the final memory iteration, snapshotting, snapshot transfer, and completion phase. This provides the data needed to log effective downtime in the VMM and lays the groundwork for future migration statistics reporting. # Terminology At first glance, the use of "state" and "[VM] snapshot" may seem confusing. As discussed in [0], we use "state" consistently in the migration code. On the VM side, "snapshotting" is merely the mechanism used to obtain the VM state. [0] https://github.com/cloud-hypervisor/cloud-hypervisor/pull/7979#discussion_r3061359899 On-behalf-of: SAP philipp.schuster@sap.com Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>