Linux View server memory usage

1. Free command

Free-m

Total used free shared buffers Cached
mem:1526 182 1344 0 16 99
-/+ buffers/cache:65 1460
swap:3071 0 3071

It clearly shows how much memory is in total, how much has been used, and how much is left.

2. Top command

There are two lines in the display result in the top command:

mem:1563088k Total, 186784k used, 1376304k free, 17444k buffers
swap:3145720k Total, 0k used, 3145720k free, 101980k cached

This also very clear, just say that it is displayed in the Unit K.

3. Vmstat command

procs-----------Memory-------------Swap-------io------System-------CPU-----
R b swpd free buff cache si so bi bo in CS us sy ID WA St
0 0 0 1376320 17452 101980 0 0 1 1 4 5 0 0 100 0 0

Results and clarity

Linux View server memory usage