Red Hat ENTERPRISE LINUX 5 - VIRTUALIZATION GUIDE Manual page 283

• Domains in the dying state are in is in process of dying, which is a state where the domain has not
completely shut-down or crashed.
• crashed guests have failed while running and are no longer running. This state can only occur if
the guest has been configured not to restart on crash.
Displaying virtual CPU information
To display virtual CPU information from a guest with virsh:
# virsh vcpuinfo {domain-id, domain-name or domain-uuid}
An example of virsh vcpuinfo output:
# virsh vcpuinfo r5b2-mySQL01
VCPU: 0
CPU: 0
State: blocked
CPU time: 0.0s
CPU Affinity: yy
Configuring virtual CPU affinity
To configure the affinity of virtual CPUs with physical CPUs:
# virsh vcpupin domain-id vcpu cpulist
The domain-id parameter is the guest's ID number or name.
The vcpu parameter denotes the number of virtualized CPUs allocated to the guest.The vcpu
parameter must be provided.
The cpulist parameter is a list of physical CPU identifier numbers separated by commas. The
cpulist parameter determines which physical CPUs the VCPUs can run on.
Configuring virtual CPU count
To modify the number of CPUs assigned to a guest with virsh:
# virsh setvcpus {domain-name, domain-id or domain-uuid} count
The new count value cannot exceed the count above the amount specified when the guest was
created.
Configuring memory allocation
To modify a guest's memory allocation with virsh :
# virsh setmem {domain-id or domain-name} count
You must specify the count in kilobytes. The new count value cannot exceed the amount you specified
when you created the guest. Values lower than 64 MB are unlikely to work with most guest operating
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