Page compressibility checker
US9600317B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2014 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Jun 26, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45583
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques for checking the compressibility of a memory page that is allocated to a virtual machine (VM) running on a host system are provided. In one embodiment, the host system can determine a compression ratio for the memory page by compressing the memory page using a first compression algorithm. The host system can then compare the compression ratio to a threshold. If the compression ratio does not exceed the threshold, the host system can predict that the memory page is compressible by a second compression algorithm that is distinct from the first compression algorithm. On average, the second compression algorithm can be slower, but achieve a lower compression ratio, than the first compression algorithm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.