$R2S$Server Memory usage is greater than 90% - awsbkxnval000r   
top - 16:57:15 up 59 days,  8:44,  3 users,  load average: 2.12, 2.33, 2.26 
Tasks: 855 total,   1 running, 854 sleeping,   0 stopped,   0 zombie 
%Cpu(s):  0.7 us,  0.4 sy,  0.0 ni, 98.7 id,  0.0 wa,  0.1 hi,  0.1 si,  0.0 st 
MiB Mem : 509825.4 total,   5863.8 free, 485121.8 used,  18839.7 buff/cache 
MiB Swap:   2044.0 total,     48.1 free,   1995.9 used.  10904.9 avail Mem  
