Using DMA for copying performance counter data to memory
Patent
·
OSTI ID:1113227
A device for copying performance counter data includes hardware path that connects a direct memory access (DMA) unit to a plurality of hardware performance counters and a memory device. Software prepares an injection packet for the DMA unit to perform copying, while the software can perform other tasks. In one aspect, the software that prepares the injection packet runs on a processing core other than the core that gathers the hardware performance data.
- Research Organization:
- International Business Machines Corporation, Armonk, NY, USA
- Sponsoring Organization:
- USDOE
- Assignee:
- International Business Machines Corporation (Armonk, NY)
- Patent Number(s):
- 8,621,167
- Application Number:
- 13/446,467
- OSTI ID:
- 1113227
- Country of Publication:
- United States
- Language:
- English
Afterburner (network-independent card for protocols)
|
journal | July 1993 |
Instruction-level characterization of scientific computing applications using hardware performance counters
|
conference | January 1999 |
A Portable Programming Interface for Performance Evaluation on Modern Processors
|
journal | August 2000 |
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