这个顶级命令输出中的CMPRS是什么？
Processes: 264 total, 2 running, 9 stuck, 253 sleeping, 1229 threads
2015/04/13 17:17:48
Load Avg: 1.00, 1.22, 1.24
CPU usage: 6.36% user, 21.81% sys, 71.81% idle
SharedLibs: 14M resident, 16M data, 0B linkedit.
MemRegions: 120250 total, 3283M resident, 82M private, 540M shared.
PhysMem: 7711M used (1109M wired), 478M unused.
VM: 693G vsize, 1068M framework vsize, 680833(0) swapins, 842308(0) swapouts.
Networks: packets: 3/224B in, 2/196B out.
Disks: 0/0B read, 0/0B written.
PID COMMAND %CPU TIME #TH #WQ #PORTS MEM PURG CMPRS PGRP PPID STATE BOOSTS %CPU_ME %CPU_OTHRS UID FAULTS COW MSGSENT MSGRECV SYSBSD SYSMACH CSW PAGEINS IDLEW POWER USER #MREGS RPRVT VPRVT VSIZE KPRVT KSHRD
98414 diskmanagementd 0.0 00:00.50 0 0 0 0B 0B 0B 98414 1 sleeping *0[0] 0.00000 0.00000 0 0 0 0 0 0 0 0 0 0 0.0 root 0 -96K -32M 0B 0B 0B
96595 periodic-wrapper 0.0 00:00.03 0 0 0 0B 0B 0B 96595 1 sleeping *0[0] 0.00000 0.00000 0 0 0 0 0 0 0 0 0 0 0.0 root 0 -16K -16M 0B 0B 0B
我使用的命令是top -d -r -l 0 -s 0。