User_beancounters Memory Limit

Nov 6, 2008

in the user_beancounters below Which is responsible for memory limit? And Which the unit(bytes, kb, Mb, Gb)?
# cat /Proc/user_beancounters
Version: 2.5
uid resource held maxheld barrier limit failcnt
100: kmemsize 2780345 5144991 11055923 11377049 0
lockedpages 0 0 256 256 0
privvmpages 33433 68587 262144 262144 40404
shmpages 640 656 21504 21504 0
dummy 0 0 0 0 0
numproc 41 70 240 240 0
physpages 17144 46756 0 2147483647 0
vmguarpages 0 0 33792 2147483647 0
oomguarpages 17144 46756 536870912 2147483647 0
numtcpsock 27 35 360 360 0
numflock 6 8 188 206 0
numpty 1 2 16 16 0
numsiginfo 0 28 256 256 0
tcpsndbuf 207948 270556 1720320 2703360 0
tcprcvbuf 204424 1665268 1720320 2703360 0
othersockbuf 19424 57300 1126080 2097152 0
dgramrcvbuf 0 261888 262144 262144 2605
numothersock 21 51 360 360 0
dcachesize 0 0 3409920 3624960 0
numfile 927 1748 9312 9312 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
numiptent 47 47 128 128 0

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