UBC interdependencies table

User Beancounters Definition /proc/user_beancounters /proc/bc/ General information Units of measurement VSwap Parameters description Primary parameters numproc, numtcpsock, numothersock, vmguarpages Secondary parameters kmemsize, tcpsndbuf, tcprcvbuf, othersockbuf, dgramrcvbuf, oomguarpages, privvmpages Auxiliary parameters lockedpages, shmpages, physpages, numfile, numflock, numpty, numsiginfo, dcachesize, numiptent, swappages Internals User pages accounting RSS fractions accounting On-demand accounting UBC consistency Consistency formulae System-wide configuration vzubc(8) Configuration examples Basic Derived Intermediate configurations Tables List of parameters Parameter properties Consistency Config examples

Interdependency	Importance
$kmemsize_{bar}\geq 40KB\cdot avnumproc+dcachesize_{lim}$	Mandatory
$privvmpages_{bar}\geq vmguarpages_{bar}$	Recommended
$tcpsndbuf_{lim}-tcpsndbuf_{bar}\geq 2.5KB\cdot numtcpsock$	Mandatory
$othersockbuf_{lim}-othersockbuf_{bar}\geq 2.5KB\cdot numothersock$	Mandatory
$tcprcvbuf_{lim}-tcprcvbuf_{bar}\geq 2.5KB\cdot numtcpsock$	Recommended
$tcprcvbuf_{bar}\geq 64KB$	Recommended
$tcpsndbuf_{bar}\geq 64KB$	Recommended
$dgramrcvbuf_{bar}\geq 129KB$	Optional
$othersockbuf_{bar}\geq 129KB$	Optional
$numfile\geq avnumproc\cdot 32$	Recommended
$dcachesize_{bar}\geq numfile\cdot 384\ {\rm {(bytes)}}$	Recommended
$barrier\leq limit$	Mandatory

See also

• UBC consistency check
• user:grin/openvz checker.pl