Changes
Change capitilization on example units to read as (mega/kilo)BYTES instead of BITS
[[User Beancounters]] have default units which are used when viewing and setting the parameter values. When setting the values for some parameters, you are able to specify [[#Overriding Default Units|different units]] thereby avoiding the need to do manual conversion of units and making life a little easier!
{{UBC toc}}
== Pages ==
Parameters which have the suffix "page" are measured in numbers of [[memory page|pages]]. These include:
* [[UBC primary parameters|Primary Parameters]]
** <code>[[vmguarpages]]</code>
* [[UBC secondary parameters|Secondary Parameters]]
** <code>[[privvmpages]]</code>
** <code>[[oomguarpages]]</code>
* [[UBC auxiliary parameters|Auxiliary Parameters]]
** <code>[[lockedpages]]</code>
** <code>[[shmpages]]</code>
** <code>[[physpages]]</code>
** <code>[[swappages]]</code>
When using [[vzctl]] to set these beancounter parameters, you can override the default units of "pages" by using a [[#Overriding Default Units|valid suffix]].
== Numbers of Items ==
Parameters with the prefix "num" are measured in numbers of items:
* [[UBC primary parameters|Primary Parameters]]
** <code>[[numproc]]</code>
** <code>[[numtcpsock]]</code>
** <code>[[numothersock]]</code>
* [[UBC secondary parameters|Secondary Parameters]]
** None
* [[UBC auxiliary parameters|Auxiliary Parameters]]
** <code>[[numfile]]</code>
** <code>[[numflock]]</code>
** <code>[[numpty]]</code>
** <code>[[numsiginfo]]</code>
** <code>[[numiptent]]</code>
== Bytes ==
Other parameters are measured in bytes:
* [[UBC primary parameters|Primary Parameters]]
** None
* [[UBC secondary parameters|Secondary Parameters]]
** <code>[[kmemsize]]</code>
** <code>[[tcprcvbuf]]</code>
** <code>[[tcpsndbuf]]</code>
** <code>[[othersockbuf]]</code>
** <code>[[dgramrcvbuf]]</code>
* [[UBC auxiliary parameters|Auxiliary Parameters]]
** <code>[[dcachesize]]</code>
When using [[vzctl]] to set these beancounter parameters, you can override the default units of "bytes" by using a [[#Overriding Default Units|valid suffix]].
== Overriding Default Units ==
When using [[vzctl]] to set beancounter parameters which use "Pages" or "Bytes" as the default units, alternative units may be specified using one of the following suffixes:
== Overriding default units = Examples ===
* Set <code>kmemsize </code> limit to 512 KbKB
<pre>
# vzctl set $CTID --kmemsize 512k
</pre>
* Set <code>privvmpages </code> limit to 256 MbMB
<pre>
# vzctl set $CTID --privvmpages 256m
</pre>
* Set <code>tcprcvbuf </code> limit to 1000 pages (totals to almost 4 Mb MB on x86)
<pre>
# vzctl set $CTID --tcprcvbuf 1000p
</pre>
[[Category: HOWTO]]