Method and apparatus for determining and using program paging characteristics to optimize system productive CPU time
US5247687A · kind A · utility
26Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1990 |
| Grant date | Sep 21, 1993 |
| Priority date | — |
| Expiry date | Aug 31, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/121
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Paging data is used to manage address space working set size, system multiprogramming level, and job mix, to improve system productive CPU utilization. System paging characteristics are monitored to determine when to perform management functions. When needed, address space paging data is collected for monitored address spaces, and target working set sizes set for managed address spaces. If necessary, address spaces are "forced" to exhibit characteristic paging patterns. Reallocation of working set pages among active address spaces, and swap in-swap out actions, are assessed, and impacts on productive CPU utilization is estimated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.