1. Grid Infrastructure Installation and Upgrade Guide
  2. Configuring Operating Systems for Oracle Grid Infrastructure on IBM AIX on POWER Systems (64–Bit)
  3. Tuning AIX System Environment
  4. Tuning Virtual Memory Manager (VMM)

Tuning Virtual Memory Manager (VMM)

Oracle recommends that you use the vmo command to tune virtual memory.

Note:

  • The lru_file_repage parameter does not apply to IBM AIX 7.1 and later updates to IBM AIX 7.1.
  • The tunable parameters strict_maxclient and strict_maxpermare deprecated in IBM AIX 7.2 and later updates to IBM AIX 7.2.

Table 3-5 Recommended Values for Virtual Memory Manager

Parameter Value
minperm% 3
maxperm% 90
maxclient% = 90 90

For example:

vmo -p -o minperm%=3
vmo -p -o maxperm%=90
vmo -p -o maxclient%=90

You must restart the system for these changes to take effect.

Parent topic: Tuning AIX System Environment