title: AIX memory utilization
body: <p>I am new in AIX and I want to learn about how memory utlization works in AIX
  I can use nmon and where it shows Memory as below.</p>
  
  <p>As it shows total memory is 128GB and used memory is 124GB Is it normal/ I want to learn how to make sure reading the below information we are okay with memory utilization </p>
  
  <hr>
  
  <p>│          Physical  PageSpace |        pages/sec  In     Out | FileSystemCache                                                                                                                               │
  │% Used       97.2%      0.9%  | to Paging Space   0.0    0.0 | (numperm)  6.6%                                                                                                                               │
  │% Free        2.8%     99.1%  | to File System    0.0    0.0 | Process   77.7%                                                                                                                               │
  │GB Used     124.4GB     0.7GB | Page Scans        0.0        | System    12.9%                                                                                                                               │
  │GB Free       3.6GB    79.3GB | Page Cycles       0.0        | Free       2.8%                                                                                                                               │
  │Total(GB)   128.0GB    80.0GB | Page Steals       0.0        |           ------                                                                                                                              │
  │                              | Page Faults      10.0        | Total    100.0%  </p>
  
  <p>Thanks in advance              </p>