Changes

== [[UBC ]] parameters ==

Here is the example of current [[UBC]] stands for [[User Beancounters|'''u'''ser '''b'''ean'''c'''ounters]] &mdash; this is a set of limits and guarantees contolled per VE. You can see the current usage values and limits by examining the output of obtained from <code>/proc/user_beancounters</code> file. Here is the example of /proc/user_beancounters inside in VE with ID of 123:

Note You can see if you hit the limits for some [[UBC]] parameters by analyzing the last column (named <code>failcnt</code>) &mdash; it . It shows a number of fails for this counter, i.e. a number of times the a parameter hit the limit. Usually what you need to do is to increase the parameter in question. But you need to do it carefully, and here is how.

<li>Get the current values for the parameter's barrier and limit. For example, we want to increase kmemsize values from the above exampleat . From Say, from <code>/proc/user_beancounters </code> example given [[UBC|here]] we see that kmemsize barrier is 2752512, and its limit is 2936012.

By using <ttcode>--save</tt> flag, we denote we want to both apply the new settings to the running VE, and save them in the configuration file (from which they will be taken during next VE start).