Inter-virtual machine time profiling of I/O transactions
US8468524B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Oct 13, 2010 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | Jun 2, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45583
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a virtual machine system where hardware timer interrupts are processed by a first virtual machine. The first virtual machine writes a timer value to a shared memory location while processing the hardware timer interrupt. The timer value may be based on a kernel timing parameter maintained by the operating system of the first virtual machine. A second virtual machine may read the shared timer value from the shared memory location in order to time inter-virtual machine processes such as I/O processing and I/O requests.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.