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1、用top命令指定固定的PID

top -p 10997

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2、查詢指定進程的PID

ps -ef | grep zookeeper


3、使用ps查詢指定進程名或者PID的占用情況

ps -aux | grep zookeeper

ps -aux | grep 2181

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4、查看更詳細的內存占比

cat /proc/10997/status

Name: ? ?java
State: ? ?S (sleeping)
Tgid: ? ?10997
Ngid: ? ?0
Pid: ? ?10997
PPid: ? ?1959
TracerPid: ? ?0
Uid: ? ?1000 ? ?1000 ? ?1000 ? ?1000
Gid: ? ?1000 ? ?1000 ? ?1000 ? ?1000
FDSize: ? ?256
Groups: ? ?4 24 27 30 46 113 128 130 132 134 1000 1002?
NStgid: ? ?10997
NSpid: ? ?10997
NSpgid: ? ?10987
NSsid: ? ?10914
VmPeak: ? ?11522940 kB
VmSize: ? ?11522940 kB
VmLck: ? ? ? ? ? 0 kB
VmPin: ? ? ? ? ? 0 kB
VmHWM: ? ? ? 65176 kB
VmRSS: ? ? ? 65176 kB
VmData: ? ?11462972 kB
VmStk: ? ? ? ? 140 kB
VmExe: ? ? ? ? ? 4 kB
VmLib: ? ? ? 17064 kB
VmPTE: ? ? ? ? 460 kB
VmPMD: ? ? ? ? ?28 kB
VmSwap: ? ? ? ? ? 0 kB
HugetlbPages: ? ? ? ? ? 0 kB
Threads: ? ?25
SigQ: ? ?0/128292
SigPnd: ? ?0000000000000000
ShdPnd: ? ?0000000000000000
SigBlk: ? ?0000000000000000
SigIgn: ? ?0000000000000003
SigCgt: ? ?2000000181005ccc
CapInh: ? ?0000000000000000
CapPrm: ? ?0000000000000000
CapEff: ? ?0000000000000000
CapBnd: ? ?0000003fffffffff
CapAmb: ? ?0000000000000000
Seccomp: ? ?0
Cpus_allowed: ? ?ff
Cpus_allowed_list: ? ?0-7
Mems_allowed: ? ?00000000,00000001
Mems_allowed_list: ? ?0
voluntary_ctxt_switches: ? ?86
nonvoluntary_ctxt_switches: ? ?2

VmRSS為內存
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