Memory swapper for virtualized environments
US10379751B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2017 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Oct 3, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/152
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for reducing disk read rate by managing dataset mapping of virtual machine (VM) guest memory, comprising: monitoring a plurality of disk read write operations of a VM guest; updating a dataset mapping between disk blocks allocated to the VM guest and corresponding physical addresses of memory pages of the VM guest containing replica of data stored in the disk blocks, based on the plurality of disk read write operations; when identifying writing to one of the memory pages, removing a mapping of corresponding disk block and corresponding physical address of memory page; when reclaiming a mapped memory page of the VM guest by a host of the VM guest, discarding data contained in the memory page; and when the data is requested by the VM guest after it was reclaimed by said host, retrieving the data from corresponding disk block according to the mapping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.