Virtual Memory = PhysicalMemory(RAM) + Extended Memory (Disk)

##</code><code>##

  my $total_swap_mem = $v->{SizeStoredInPagingFiles};
  my $free_swap_mem = $v->{FreeSpaceInPagingFiles};
  my $used_swap_mem = $total_swap_mem - $free_swap_mem;
  my $used_swap_mem_perc = ($total_swap_mem - $free_swap_mem) / $total_swap_mem * 100;

  printf "Swap total:%d kb\n", $total_swap_mem;
  printf "Swap free:%d kb\n", $free_swap_mem;
  printf "Swap used:%d kb\n", $used_swap_mem;
  printf "Swap used:%.2f %%\n", $used_swap_mem_perc;


##</code><code>##

MEM_USED = Win32_OperatingSystem->TotalVisibleMemorySize - Win32_OperatingSystem->FreePhysicalMemory
SWAP_USED = (Win32_OperatingSystem->SizeStoredInPagingFiles - Win32_OperatingSystem->FreeSpaceInPagingFiles) /  Win32_OperatingSystem->SizeStoredInPagingFiles