Linux viewing process memory consumption and memory usage

Linux process Memory Consumption view method
(1) Top
You can view the contents of the%mem directly after you use the top command. You can choose to view by process or by user, if you want to see the process memory usage of the Oracle user, you can use the following command:
$ top-u Oracle

(2) Pmap
Depending on the process, you can view the memory used by the process-related information (the process number can be viewed by PS) as follows:
$ pmap-d 14596

(3) PS
As shown in the following example:
$ ps-e-O ' pid,comm,args,pcpu,rsz,vsz,stime,user,uid ' where Rsz is the actual memory
$ ps-e-o ' pid,comm,args,pcpu,rsz,vsz,stime,user,uid ' | grep Oracle | Sort-nrk5
Where Rsz is the actual memory, the above example is implemented by memory sort, from large to small

(4) Free-m

View Memory usage

Linux viewing process memory consumption and memory usage