Refreshing memory topology in virtual machine operating systems
US9342342B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Jan 9, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/152
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to one aspect of the present disclosure a system and technique for refreshing memory topology in virtual machine operating systems is disclosed. The system includes a processor and logic executable by the processor to: responsive to receiving, by an operating system of a virtual machine, a notification of an affinity change relative to workload memory resources, poll a hypervisor for updated memory affinity data; determine, for each logical memory block of the workload memory resources, whether an affinity string for the respective logical memory block has changed; responsive to determining that the affinity string for the respective logical memory block has changed, identify a data structure of the logical memory block maintained by the operating system; and update affinity information in the data structure based on the change to the affinity string of the logical memory block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.