total        used        free      shared  buff/cache   available
Mem:            7937         827        6794           6         315        6841
Swap:              0           0           0
               total        used        free      shared  buff/cache   available
Mem:            7937         921        6847           6         168        6790
Swap:              0           0           0
               total        used        free      shared  buff/cache   available
Mem:            7937         843        6778           6         315        6825
Swap:              0           0           0
               total        used        free      shared  buff/cache   available
Mem:            7937         902        6860           6         174        6806
Swap:              0           0           0