JPH04307631A - Cpu distribution control system for virtual computer system - Google Patents

Abstract

PURPOSE:To optimize the using time of a real computer, a virtual computer, and a CPU set between the virtual computers by monitoring the executing time of the virtual computer at a fixed time interval. CONSTITUTION:An executing time monitoring means 4 contained in a virtual computer monitors the CPU using time of a virtual computer 2. Then the CPU use distributing time which is calculated by a virtual computer use distributing time range setting means 5 and held by a virtual computer CPU use distributing time holding means 6 is compared with the actual CPU using time of the computer 2. Based on the difference between both times, a virtual computer time slice interval changing means 7 changes the time slice interval value of the computer 2. Thus it is possible to dynamically distribute a CPU between the virtual computer and a real computer and to operate a virtual computer system.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a virtual computer system, and particularly to a virtual computer CPU distribution processing method.

0002

[Prior Art] Conventionally, in this type of virtual computer system, the allocation amount of the real computer central processing unit to the virtual computer central processing unit is controlled based on the priority set for each virtual computer central processing unit. When a computer is created and when the virtual machine is in operation, control is performed by setting the priority of the virtual machine according to instructions from an operator. In the virtual machine system described above, the amount allocated to the virtual machine central processing unit is
While a virtual machine is in operation, it is controlled by an operator setting the execution priority of the virtual machine, but depending on the operation mode, the amount of CPU allocated to a virtual machine with a low execution priority may be reduced. Another disadvantage is that if a CPU loop occurs in a virtual machine with a high execution priority, the amount of CPU allocated to a job on a virtual machine or real computer with a low execution priority decreases.

0003

[Problems to be Solved by the Invention] An object of the present invention is to dynamically control the ratio of the CPU usage time of a virtual computer central processing unit to the CPU usage time of a real calculation central processing unit, and to It is to operate a virtual computer system while performing appropriate CPU allocation.

0004

[Means for Solving the Problems] According to the present invention, there is provided a virtual machine CPU usage allocation time setting means for setting the CPU usage time of a virtual machine with respect to a real computer;
A virtual machine CPU usage allocation time holding means for holding the U usage allocation time, a virtual computer central processing unit execution time holding means for holding the accumulated CPU usage time executed by the virtual computer central processing unit, and The execution time monitoring means for the virtual machine monitors the execution time of the central processing unit of the virtual machine and compares it with the CPU usage time of the virtual machine. A CPU distribution control method in a virtual computer system is provided, which includes a time slice interval value changing means for changing a time slice interval value of a virtual computer in order to adapt a distribution value.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a diagram showing the configuration of the present invention. FIG. 2 is a diagram showing an overview of control operations in the CPU distribution processing method.

In FIG. 1, a virtual machine CPU usage allocation time holding means 6 is disposed in a virtual machine monitor 1, and when a virtual machine is created and when the virtual machine is running, the actual computer central processing is performed according to an operator's instruction. The upper and lower limits of the virtual computer central processing unit execution time relative to the device execution time are set in the virtual machine CPU usage allocation time holding means 6 using the virtual computer CPU usage allocation time range setting means 5. Virtual machine monitor 1 monitors one or more virtual machines 2
During its operation, the virtual machine execution time monitoring means 4 monitors the virtual machine execution time stored by the virtual machine central processing unit execution time holding means 3 in the virtual machine 2 at arbitrary fixed time intervals, This virtual machine execution time is used to calculate the CPU usage time within a certain period of time. Compare this CPU usage time with the time stored in the CPU usage allocation time holding means 6 of the virtual machine, for example,
The usage time is the CPU usage allocation time holding means 6 of the virtual computer.
If the value stored in , that is, the value stored in If the value stored in the holding unit 6 is smaller than the lower limit value, the time slice interval value changing unit 7 of the virtual machine performs an operation to increase the time slice interval value of the virtual machine 2.

In FIG. 2, an overview of the control operation in the CPU distribution processing method is, for example, when a virtual machine is generated, the distribution ratio of the execution time of the virtual machine central processing unit stored in the virtual machine operation definition file 18 is calculated. C.P.
The U allocation value is read in the reading process 20, and the virtual machine CPU usage allocation time is calculated in the virtual machine CPU usage allocation time calculation process 11, and the CPU usage allocation time is stored in the holding area 19. The execution time of the virtual computer central processing unit stored in the virtual machine 2 is read at an arbitrary fixed time interval in the reading process 13 of the execution time of the virtual machine, and the execution time of the virtual computer central processing unit stored in the virtual machine 2 is read at an arbitrary fixed time interval, and the execution time of the virtual machine central processing unit stored in the virtual machine 2 is read at an arbitrary fixed time interval. Calculate the CPU usage time within. C.P.
The CPU usage time calculated in the U usage time calculation process 14 and the value stored in the CPU usage allocation time holding area 19 are compared in the CPU usage time comparison process 15, and as a result, the CPU usage time is If it is longer than the usage allocation time, the time slice interval value of the virtual machine 2 is shortened in virtual machine time slice interval value reduction processing 17, and the CPU usage time is
If it is shorter than the usage allocation time, the time slice interval value of the virtual machine 2 is lengthened in the virtual machine time slice interval value increasing process 16. By performing this control at arbitrary fixed time intervals, the CPU dynamically changes from the real computer central processing unit to the virtual computer central processing unit.
Control your quota.

[0009]

[Effects of the Present Invention] As explained above, the present invention provides a method for controlling the CP for the virtual computer central processing unit at arbitrary fixed time intervals.
By monitoring the U usage amount, it is possible to dynamically control the CPU usage amount of the virtual computer central processing unit with respect to the real computer central processing unit. This allows the virtual computer system to dynamically control the ratio of the CPU usage time of the virtual computer central processing unit to the CPU usage time of the real computer central processing unit, and to perform appropriate CPU allocation between the real computer and the virtual computer. It has the effect of being able to operate.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the configuration of the present invention.

FIG. 2 is a diagram showing an overview of control operations in the CPU allocation processing method.

[Explanation of symbols]

1 Virtual machine monitor 2 Virtual machine 3 Virtual machine central processing unit execution time holding means 4
Virtual machine execution time monitoring means 5 Virtual machine CPU usage allocation time range setting means 6
Virtual machine CPU usage allocation time holding means 7 Virtual machine time slice interval value changing means 11
CPU usage allocation time calculation process 12 Time monitoring at arbitrary fixed time intervals 13 Virtual machine execution time reading process 14 Virtual machine CP
U usage time calculation process 15 CPU usage allocation time comparison process 16 Virtual machine time slice interval value increase process 17 Virtual machine time slice interval value reduction process 18 Virtual computer operation definition file 19 CPU usage allocation time holding area 20 CPU allocation value reading process

Claims (1)

[Claims] Claim 1: In a virtual computer system in which a virtual computer central processing unit is realized by time-sharing the real computer central processing unit and allocating it to the virtual computer central processing unit, the CPU usage allocation time of the virtual computer with respect to the real computer is A CPU usage allocation time setting means for the virtual machine to be set, a CPU usage allocation time holding means for the virtual machine that holds the set CPU usage allocation time, and an accumulation of CPU usage time executed by the virtual machine central processing unit. A virtual machine central processing unit execution time holding means for holding, a virtual machine execution time monitoring means for monitoring the virtual machine central processing unit execution time at regular intervals and comparing it with the virtual machine's CPU usage time, and a virtual machine CPU usage. A virtual machine characterized by having a time slice interval value changing means for changing a time slice interval value of the virtual machine in order to compare the time and the execution time of the virtual computer central processing unit and adapt the CPU allocation value of the virtual machine. A CPU distribution control method in a computer system.