$R2S$ Server Memory usage is greater than 90% - awsbryirll0009   
top - 09:10:29 up 89 days, 15:27,  3 users,  load average: 0.43, 0.72, 1.01 
Tasks: 810 total,   1 running, 809 sleeping,   0 stopped,   0 zombie 
%Cpu(s):  0.2 us,  0.4 sy,  0.0 ni, 99.5 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st 
MiB Mem : 509825.4 total,  40332.3 free, 451623.9 used,  17869.2 buff/cache 
MiB Swap:   2048.0 total,      9.3 free,   2038.7 used.  44026.8 avail Mem  
 
    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                                                                         
3877254 schakr86  20   0   53296   5144   3692 R  16.7   0.0   0:00.05 top                                                                                             
      1 root      20   0  241268   8528   4680 S   0.0   0.0 432:31.78 systemd                                                                                         
      2 root      20   0       0      0      0 S   0.0   0.0   0:30.77 kthreadd                                                                                        
      3 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 rcu_gp                                                                                          
      4 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 rcu_par_gp                                                                                      
      5 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 slub_flushwq                                                                                    
      7 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/0:0H-events_highpri                                                                     
     10 root      20   0       0      0      0 I   0.0   0.0   0:16.53 kworker/u128:0-netns                                                                            
     11 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 mm_percpu_wq             