Invention Grant
US08291413B2 Virtual computer system managing schedule for allocating CPU to guest OSes and guest OS scheduling method
有权
虚拟计算机系统管理计划，用于将CPU分配给客户操作系统和客户机操作系统调度方法
- Patent Title: Virtual computer system managing schedule for allocating CPU to guest OSes and guest OS scheduling method
- Patent Title (中): 虚拟计算机系统管理计划，用于将CPU分配给客户操作系统和客户机操作系统调度方法
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Application No.: US12261901Application Date: 2008-10-30
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Publication No.: US08291413B2Publication Date: 2012-10-16
- Inventor: Satoshi Mizuno
- Applicant: Satoshi Mizuno
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba,Toshiba Solutions Corporation
- Current Assignee: Kabushiki Kaisha Toshiba,Toshiba Solutions Corporation
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- Priority: JP2007-283721 20071031
- Main IPC: G06F9/455
- IPC: G06F9/455
Abstract:
According to one embodiment, a virtual machine manager (VMM) virtualizes hardware including a CPU to construct a plurality of virtual machines. A plurality of guest OSes are executed on the respective virtual machines. A detector included in VMM detects a change in the operating frequency of CPU. A scheduler is included in VMM. If a change in operating frequency is detected, and the operating frequency decreases below a prescribed frequency, the scheduler performs scheduling so as to increase a time for which the CPU is to be allocated to one or more predetermined particular guest OSes of the plurality of guest OSes.
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