JPS5557953A - Dispatching control system of virtual computer system - Google Patents
Dispatching control system of virtual computer systemInfo
- Publication number
- JPS5557953A JPS5557953A JP13081978A JP13081978A JPS5557953A JP S5557953 A JPS5557953 A JP S5557953A JP 13081978 A JP13081978 A JP 13081978A JP 13081978 A JP13081978 A JP 13081978A JP S5557953 A JPS5557953 A JP S5557953A
- Authority
- JP
- Japan
- Prior art keywords
- timer
- cpu
- virtual computer
- dispatching
- computer system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To reduce an overhead by providing a virtual computer system with a timer whlch is exclusively used only by a control program and then by dispatching operating system OS by using it.
CONSTITUTION: Among several CPU timers on main memory MEM2, virtual computer monitor MM sets the value of CPU timer 6-i, corresponding to dispatched virtual computer VM, in CPU timer 4. The dispatching of a VM program is carried out and in CPU timer 4, the value of a CPU timer corresponding to newly-dispatched VM is set. An interruption code by a RVM timer 3 is newly defined and an interruption code is stored in a fixed area of MEM2. As a result, there is no need for CPU timers to share VMM and OS of VM and they can be brought under the control of VM, so that the overhead of an interruption process can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13081978A JPS5557953A (en) | 1978-10-24 | 1978-10-24 | Dispatching control system of virtual computer system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13081978A JPS5557953A (en) | 1978-10-24 | 1978-10-24 | Dispatching control system of virtual computer system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5557953A true JPS5557953A (en) | 1980-04-30 |
JPS6313218B2 JPS6313218B2 (en) | 1988-03-24 |
Family
ID=15043446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13081978A Granted JPS5557953A (en) | 1978-10-24 | 1978-10-24 | Dispatching control system of virtual computer system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5557953A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60140437A (en) * | 1983-12-28 | 1985-07-25 | Hitachi Ltd | Virtual computer system timer control system |
WO2001067243A1 (en) * | 2000-03-08 | 2001-09-13 | Mitsubishi Denki Kabushiki Kaisha | Method for processor power-saving, recorded medium, and processor power-saving controller |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0270705U (en) * | 1988-11-16 | 1990-05-29 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5378138A (en) * | 1976-12-22 | 1978-07-11 | Fujitsu Ltd | Processing system for multiplex interruption |
-
1978
- 1978-10-24 JP JP13081978A patent/JPS5557953A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5378138A (en) * | 1976-12-22 | 1978-07-11 | Fujitsu Ltd | Processing system for multiplex interruption |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60140437A (en) * | 1983-12-28 | 1985-07-25 | Hitachi Ltd | Virtual computer system timer control system |
WO2001067243A1 (en) * | 2000-03-08 | 2001-09-13 | Mitsubishi Denki Kabushiki Kaisha | Method for processor power-saving, recorded medium, and processor power-saving controller |
US7120911B1 (en) | 2000-03-08 | 2006-10-10 | Mitsubishi Denki Kabushiki Kaisha | Processor power-saving control method, storage medium, and processor power-saving control device |
Also Published As
Publication number | Publication date |
---|---|
JPS6313218B2 (en) | 1988-03-24 |
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