настроить процессоры (configure CPUs)
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
