code: def internal_get_statistics(self):
          
          (cpu_user, cpu_kernel, cpu_idle, mem_total, mem_free, mem_balloon, mem_shared, mem_cache, paged_total, mem_alloc_total, mem_free_total, mem_balloon_total, mem_shared_total) = self._call("internalGetStatistics")
          return (cpu_user, cpu_kernel, cpu_idle, mem_total, mem_free, mem_balloon, mem_shared, mem_cache, paged_total, mem_alloc_total, mem_free_total, mem_balloon_total, mem_shared_total)
docs: Internal method; do not use as it might change at any time.
  
          out cpu_user of type int
              Percentage of processor time spent in user mode as seen by the guest.
  
          out cpu_kernel of type int
              Percentage of processor time spent in kernel mode as seen by the guest.
  
          out cpu_idle of type int
              Percentage of processor time spent idling as seen by the guest.
  
          out mem_total of type int
              Total amount of physical guest RAM.
  
          out mem_free of type int
              Free amount of physical guest RAM.
  
          out mem_balloon of type int
              Amount of ballooned physical guest RAM.
  
          out mem_shared of type int
              Amount of shared physical guest RAM.
  
          out mem_cache of type int
              Total amount of guest (disk) cache memory.
  
          out paged_total of type int
              Total amount of space in the page file.
  
          out mem_alloc_total of type int
              Total amount of memory allocated by the hypervisor.
  
          out mem_free_total of type int
              Total amount of free memory available in the hypervisor.
  
          out mem_balloon_total of type int
              Total amount of memory ballooned by the hypervisor.
  
          out mem_shared_total of type int
              Total amount of shared memory in the hypervisor.