Virtual machine migration method, system, device, medium and program product
By extracting and transmitting the memory data of the virtual queue to the destination after the virtual machine is stopped at the source end, the network performance problem caused by memory page faults during virtual machine migration is solved, realizing an efficient virtual machine migration process and reducing downtime and service impact.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ALIBABA CLOUD COMPUTING CO LTD
- Filing Date
- 2025-01-17
- Publication Date
- 2026-07-17
AI Technical Summary
Current virtual machine migration methods frequently result in memory page faults after the destination virtual machine starts up, leading to decreased network performance and affecting normal service operation. In particular, network latency increases significantly when handling sudden traffic surges.
After the source virtual machine is shut down, the queue attribute information of the virtual queue is obtained in advance, the corresponding memory data is determined and transmitted to the destination host machine, so that the destination virtual machine has loaded the necessary memory data before starting, avoiding or reducing memory page fault problems.
By pre-transmitting the memory data of the virtual queue, the occurrence of page faults on critical memory of the destination virtual machine is reduced, the impact of virtual machine migration on services is reduced, network performance is not affected, and the migration can be completed with only a short downtime.
Smart Images
Figure CN122412062A_ABST