OpenVZ parameters depend on BeanCounters. Settings such as numproc, numtcpsock, kmemsize, numfile, tcpsndbuf, and tcprcvbuf in UBC need to be tweaked to increase the performance. Changes can be made to the container configuration file under /etc/pve/openvz. Visit the following links to get more details on the parameters used by OpenVZ containers:

This is a common case when a single node Proxmox was set up with an OpenVZ container, and then later when the actual cluster was created and the node in question was added to the cluster. Very likely, all the CT configuration files are in /var/lib/vz/private. Simply copying the CT configuration files from /var/lib/vz/private to...