Migrating local cache state with a virtual machine
US9354918B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2014 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Aug 9, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/4557
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments relate to migrating a local cache state with a virtual machine (VM) migration. An aspect includes detecting that a VM executing on a source host machine has been paused as part of a migration of the VM from the source host machine to a target host machine. A state of a first local cache associated with the VM is identified. The first local cache is accessible by the source host machine and includes data previously fetched from a shared storage. Pre-fetch hints that are based on the state of the first local cache are sent to the target host machine prior to the migration completing. The pre-fetch hints are utilized by the target host machine to fetch, from the shared storage, at least a subset of the data stored in the first local cache for storage in a second local cache accessible by the target host machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.