`chcpu` ( 8 )

настроить процессоры (configure CPUs)

Формат

Имя (Name)

chcpu - configure CPUs

Синопсис (Synopsis)

chcpu -c|-d|-e|-g cpu-list

chcpu -p mode

chcpu -r|-h|-V

Описание (Description)

chcpu can modify the state of CPUs. It can enable or disable CPUs, scan for new CPUs, change the CPU dispatching mode of the underlying hypervisor, and request CPUs from the hypervisor (configure) or return CPUs to the hypervisor (deconfigure).

Some options have a cpu-list argument. Use this argument to specify a comma-separated list of CPUs. The list can contain individual CPU addresses or ranges of addresses. For example, 0,5,7,9-11 makes the command applicable to the CPUs with the addresses 0, 5, 7, 9, 10, and 11.

Параметры (Options)

-c, --configure cpu-list
           Configure the specified CPUs. Configuring a CPU means that
           the hypervisor takes a CPU from the CPU pool and assigns it
           to the virtual hardware on which your kernel runs.

       -d, --disable cpu-list
           Disable the specified CPUs. Disabling a CPU means that the
           kernel sets it offline.

       -e, --enable cpu-list
           Enable the specified CPUs. Enabling a CPU means that the
           kernel sets it online. A CPU must be configured, see -c,
           before it can be enabled.

       -g, --deconfigure cpu-list
           Deconfigure the specified CPUs. Deconfiguring a CPU means
           that the hypervisor removes the CPU from the virtual hardware
           on which the Linux instance runs and returns it to the CPU
           pool. A CPU must be offline, see -d, before it can be
           deconfigured.

       -p, --dispatch mode
           Set the CPU dispatching mode (polarization). This option has
           an effect only if your hardware architecture and hypervisor
           support CPU polarization. Available modes are:

           horizontal
               The workload is spread across all available CPUs.

           vertical
               The workload is concentrated on few CPUs.

       -r, --rescan
           Trigger a rescan of CPUs. After a rescan, the Linux kernel
           recognizes the new CPUs. Use this option on systems that do
           not automatically detect newly attached CPUs.

       -V, --version
           Display version information and exit.

       -h, --help
           Display help text and exit.

Статус выхода (Exit)

chcpu has the following exit status values:

0 success

1 failure

64 partial success