当前位置:网站首页>[QNX Hypervisor 2.2用户手册]9.3 cpu
[QNX Hypervisor 2.2用户手册]9.3 cpu
2022-07-25 07:45:00 【高桐@BILL】
在VM中创建一个新的vCPU。
一,语法
cpu [options]*
二,选项
partition name
如果在Hypervisor Host域中实现了自适应分区(APS),vCPU将会运行在Host域指定的APS分区中。如果partition选项没有被置顶,vCPU线程将会运行在qvm进程启动所在的分区。
runmask cpu_number{,cpu_number}
仅允许vCPU运行在指定的物理CPU或CPU(绑核)。CPU编号从0开始。默认没有限制(不固定)
将运行掩码分配给vCPU意味着一些重要的设计选择。如果允许vCPU浮动(没有设置运行掩码或者运行掩码包含一个或多个CPU),则vCPU可以进行迁移。
在一些系统上,迁移是非常有用的,因为迁移可以讲vCPU移动到空闲的cpu核上(如果当前的运行掩码允许的话)。但是,一些上实时Guest,将一个vCP分配配到一个核上,这样不与其他的vCPU共享可以提高实时性。
QNX建议,在你的设计中第一次使用浮动vCPU,可以根据需要移动以限制或禁止迁移。
sched priority [r|f|o]
sched
high_priority, low_priority, max_replacements, peplacement_period, initial_budgets
用于设置vCPU的调度优先级和调度算法。算法可以选择设置round-robin(r,轮询调度算法),或
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