Method for scheduling virtual CPU (Central Processing Unit)
A scheduling method and virtual machine technology, applied in the field of virtual CPU scheduling, can solve the problems of simple load balancing strategy, unsatisfied load characteristics, and inability to respond in time for I/O processing.
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[0143] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0144] like figure 1 As shown, the present invention includes scheduling initialization step, inserting virtual CPU running queue step, virtual CPU running step, load balancing step, updating credit value and system load step, redistributing credit value step, reallocating physical CPU step and changing virtual machine type step;
[0145] (1) Scheduling initialization steps: Create a physical CPU scheduling structure for each physical CPU: set the main timer and adjustment timer for the main physical CPU, and set the secondary timer for other physical CPUs; create a virtual machine scheduling structure for each virtual machine : Initialize the virtual machine credit value weight, set the virtual machine type; initialize the virtual CPU scheduling structure for the virtual CPU of each virtual machine: initialize the load variable and I / O task u...
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