Logical Domains 1.3 Administration Guide

ProcedureList Power-Managed CPUs

  1. List power-managed CPUs by doing one of the following.

    1. Use the list-devices -a cpu subcommand.

      In the power management (PM) column, a yes means the CPU is power-managed and a no means the CPU is powered on. It is assumed that 100 percent free CPUs are power-managed by default, hence the dash (---) under PM.


      # ldm list-devices -a cpu
      VCPU
         PID     %FREE      PM
         0       0          no
         1       0          yes
         2       0          yes
         3       0          yes
         4       100        ---
         5       100        ---
         6       100        ---
         7       100        ---
    2. Use the parseable option (-p) to the list-devices -a cpu subcommand.

      In the power management (pm=) field, a yes means the CPU is power-managed and a no means the CPU is powered on. It is assumed that 100 percent free CPUs are power-managed by default, hence the blank in that field.


      # ldm list-devices -a -p cpu
      VERSION 1.4
      VCPU
      |pid=0|free=0|pm=no
      |pid=1|free=0|pm=yes
      |pid=2|free=0|pm=yes
      |pid=3|free=0|pm=yes
      |pid=4|free=0|pm=no
      |pid=5|free=0|pm=yes
      |pid=6|free=0|pm=yes
      |pid=7|free=0|pm=yes
      |pid=8|free=100|pm=
      |pid=9|free=100|pm=
      |pid=10|free=100|pm=