Monitoring Memory Utilization

The vmstat utility on UNIX can be used to monitor memory utilization. The most important criteria after having sufficient physical memory in the machine is to have sufficient swap space to sustain the virtual memory requirements of the portal/access manager web containers, directory process's and other associated process's.

The following example shows the input and output.

Input

% vmstat 5

Output

kthr   memory          page             disk      faults        cpu
      r b w swap  free re mf pi p fr de sr s0 s1 s2 s3  in  sy  cs us sy id
      0 0 0 11456 4120 1  41 19 1  3  0  2  0  4  0  0  48 112 130  4 14 82
      0 0 1 10132 4280 0   4 44 0  0  0  0  0 23  0  0 211 230 144  3 35 62