Changes

[[User beancounters]] is a set of per-CT counters, limits, and guarantees. There is a set of about 20 parameters which are carefully chosen to cover all the aspects of CT operation, so no single VE container can abuse any resource which is limited for the whole node and thus do harm to another CTs.

Resources accounted and controlled are mainly memory and various in-kernel objects such as IPC shared memory segments, network buffers etc. etc. Each resource can be seen from <code>/proc/user_beancounters</code> and has five values assiciated with it: current usage, maximum usage (for the lifetime of a container), barrier, limit, and fail counter. The meaning of barrier and limit is parameter-dependant; in short, those can be thought of as a soft limit and a hard limit. If any resource hits the limit, fail counter for it is increased, so CT administrator can see if something bad is happening by analyzing the output of <code>/proc/user_beancounters</code> in her VEcontainer.