Oracle Database is not using the configured Huge Pages

Issue

• Oracle Database is using regular 4K size pages instead of Huge Pages.
• Oracle Database is not using the configured Huge Pages.

# grep nr_hugepages /etc/sysctl.conf 
vm.nr_hugepages= 76800

$ grep ^HugePages -A 1 /proc/meminfo 
HugePages_Total:   76800
HugePages_Free:    76800
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB

$ grep memlock /etc/security/limits.conf 
#        - memlock - max locked-in-memory address space (KB)
oracle           soft    memlock         157286400  
oracle           hard    memlock         157286400  

Oracle Databse initialization parameter 'use_large_pages' is set to 'TRUE'. 

use_large_pages = TRUE