vzcalc - utility to calculate the VE resources usage.
  - -v
- Display additional information.
This utility displays the share of the Hardware Node resources a particular
  Virtual Environment is using. If the VE is running, the current usage is
  displayed. High utilization values (>100%) mean the system is overloaded
  (or the VE has an invalid configuration).
  - Current
- shows the amount of the resources consumed by the VE at a given time.
- Promised
- shows the resourses soft limit values "promised" for a given
    VE.
- Max 
- shows the resourses hard limit values "promised" for a given
    VE.
If the -v option is specified, the additional information
    is displayed.
  - Low Mem
- the part of memory residing at lower addresses and directly accessed by
      the kernel.
- Total Ram
- whole RAM
- Mem+Swap
- amount of memory available for applications (both RAM and swap
    space).
- Alloc Mem
- standard memory allocations made for applications in a VE. This is a more
      "virtual" system resource than RAM or RAM and swap.
Normally, the exit status is 0. On error, the exit status is 1.
Copyright (C) 2000-2006, SWsoft. Licensed under GNU GPL.