Method for changing operation of circuitry in a CPU based on a statistic of performance of the CPU
US5812425A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1996 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Sep 16, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/601
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer process transforms a "general purpose" central processing unit (hereinafter "CPU") into one of a number of possible "special purpose" CPUs by changing operation of circuitry in the CPU. Changing operation of CPU circuitry as described herein "fine tunes" behavior of the CPU, e.g. provides resources and environment most suitable for execution of a specific application program, or even a portion of an application program. The computer process performs the steps of: checking whether the CPU has a tunable unit, waiting for a triggering event indicating a need for fine tuning, reading one or more statistics on the performance of the CPU, comparing the read statistics with corresponding predetermined statistics, determining a multi-valued parameter signal depending on the comparison, driving the determined parameter signal to the tunable unit and changing operation of circuitry in the tunable unit depending on the received parameter signal, thereby to fine tune operation of the tunable unit and the CPU.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.