Tracking statistics corresponding to data access in a computer system
US9588917B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2014 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Dec 29, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4221
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention disclose a method, computer program product, and system for determining statistics corresponding to data transfer operations. In one embodiment, the computer implemented method includes the steps of receiving a request from an input/output (I/O) device to perform a data transfer operation between the I/O device and a memory, generating an entry in an input/output memory management unit (IOMMU) corresponding to the data transfer operation, wherein the entry in the IOMMU includes at least an indication of a processor chip that corresponds to the memory of the data transfer operation, monitoring the data transfer operation between the I/O device and the memory, determining statistics corresponding to the monitored data transfer operation, wherein the determined statistics include at least: the I/O device that performed the data transfer operation, the processor chip that corresponds to the memory of the data transfer operation, and an amount of data transferred.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.