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== Introduction ==
important for security and stability of the whole system. Auxiliary
parameters differ much from primary and secondary parameters in this respect.
The primary functions of auxiliary parameters are the following.
== physpages ==
Total number of RAM pages used by processes in this a container.
For memory pages used by several different containers (mappings of
containers.
For [[VSwap]]-enabled kernels, the <code>barrier</code> should be set to 0,and the <code>limit</code> limits the total size of RAM used by a container. For older kernels, <code>Physpagesphyspages</code> is an accounting-only parameter currently.In future OpenVZ releases, this parameter will allow to provide guaranteedamount of application memory, residing in RAM and not swappable.For compatibility with future versions, the The <code>barrier</code> of thisparameter should be set to <code>0</code> and the <code>limit</code> tothe maximal allowed value 'unlimited' ([[MAX_ULONGLONG_MAX]]).
== numfile ==
of total swap space in a container.
If the <code>limit</code> is set to [[MAX_ULONGLONG_MAX]] (which is the
in-kernel default for this parameter), all the swap space values
parameters (total, used, free) are reported as 0.
The value of <code>barrier</code> for this beancounter is ignored.
The value of <code>held</code> shows how much swap space
is currently being used for this container.
