Please tell me what is io_pbs in /proc/bc/CT/ioacct? Is it a IOPS?
take a look in openvz wiki : https://openvz.org/IO_accounting "number of page beancounters pinned by I/O - This is the number of page beancounters that save information about page dirtier. This is actually the number of dirty pages within beancounter at the moment." Bye, Thorsten