Accurate profile and timing information for multitasking systems
US6016466A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 1998 |
| Grant date | Jan 18, 2000 |
| Priority date | — |
| Expiry date | May 14, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/865
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Determining execution time for a portion of software includes obtaining a first time stamp value at a beginning of the portion and obtaining a second time stamp value at an end of the portion. At least one of the first and second time stamp values is adjusted to compensate for any amount of time that the portion is swapped out in a multitasking operating system. The first time stamp value is subtracted from the second time stamp value to determine execution time. Determining execution time may also include providing a deltaout value that is initialized to zero prior to the portion being run for a first time. The deltaout value is incremented by an amount of time the portion is swapped out. The first time stamp value is compensated by subtracting the deltaout value therefrom and the second time stamp value is compensated by subtracting the deltaout value therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.