$R2S$Server Memory usage is greater than 90% - awsbkxnval000u   
top - 19:22:04 up 81 days, 16:12,  4 users,  load average: 2.37, 1.77, 1.38 
Tasks: 862 total,   2 running, 860 sleeping,   0 stopped,   0 zombie 
%Cpu(s):  0.5 us,  2.5 sy,  0.0 ni, 96.7 id,  0.0 wa,  0.2 hi,  0.0 si,  0.0 st 
MiB Mem : 509825.4 total,  45228.6 free, 444383.9 used,  20212.9 buff/cache 
MiB Swap:   2044.0 total,      6.5 free,   2037.5 used.  51729.1 avail Mem 