Mechanism for reducing data copying overhead in protected memory operating systems
US5778180A · kind A · utility
28Cited by
10References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1995 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Nov 6, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5681
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and an apparatus for reducing data copying overhead associated with protected memory operating systems. In an ATM (Asynchronous Transfer Method) network, the present invention's NIC (network interface circuit) demultiplexes the information in the header of the incoming packet and routes the packet directly to its final destination using the present invention's concept of targeted buffer rings. Thus, instead of having the packet be DMA'd to a buffer in a descriptor ring in the kernel, it may be routed directly to the buffer ring of the destination process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.