动态查看一个进程的内存使用
2、ps命令
ps aux|grep process_name
3、查看/proc/process_id/文件夹下的status文件
Name: php
State: R (running)
SleepAVG: 0%
Tgid: 21574
Pid: 21574
PPid: 10005
TracerPid: 0
Uid: 1000 1000 1000 1000
Gid: 100 100 100 100
FDSize: 256
Groups: 16 100
VmPeak: 161740 kB
VmSize: 161740 kB
VmLck: 0 kB
VmHWM: 107144 kB
VmRSS: 107144 kB
VmData: 106192 kB
VmStk: 84 kB
VmExe: 5588 kB
VmLib: 7884 kB
VmPTE: 268 kB
Threads: 1
SigQ: 0/69632
SigPnd: 0000000000000000
ShdPnd: 0000000000000000
SigBlk: 0000000000000000
SigIgn: 0000000000001000
SigCgt: 00000001818040a7
CapInh: 0000000000000000
CapPrm: 0000000000000000
CapEff: 0000000000000000
Cpus_allowed: 00000000,00000000,00000000,0000000f
Mems_allowed: 1
任务虚拟地址空间的大小 VmSize
应用程序正在使用的物理内存的大小 VmRSS