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and the swap space — as discussed in [[UBC systemwide configuration]].
There is a tool - <code>[http://en.dklab.ru/lib/dklab_vzmem/ vzmem]</code> - which allows you to distribute physical memory among all VEs consistently. It shows all the physical memory blocks graphically in <code>/etc/vz/conf/MEM-MAP </code> text file and lets you to move these blocks from one VE to another to redistribute the memory. Also you may specify "additional" memory personally for each VE: such memory will be obtained from system's free memory or swap (it is reflected as modifying of <code>privvmpages</code> parameter).