Article ID: 1355, created on Oct 6, 2008, last review on May 7, 2014

  • Applies to:
  • Virtuozzo containers for Linux


  1. Entries which name has word 'page' are measured in memory pages (4K on x86 and x86_64, 16K for IA64). These are privvmpages, oomguarpages and others.
  2. entries with names like 'num*' are measured in items, i.e. numproc - number of processes, numiptent - number of iptables entries.
  3. other entries like kmemsize, tcprcvbuf/tcpsndbuf are measured in bytes

You can set parameter units explicitly when appropriate, for example: Set kmemsize limit to 16 Mb:

# vzctl set --kmemsize 16m

Set privvmpages limit to 256 Mb:
# vzctl set --privvmpages 256m

Set tcprcvbuf limit to 1000 pages (totals to almost 4 Mb on x86):
# vzctl set --tcprcvbuf 1000p

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