How do I tell which application is using which HugePages?

Solution Unverified - Updated -

Issue

  • System is configured with hugepages:
    [root@hostname ~]# grep -i huge /proc/mem*
    HugePages_Total:  2176
    HugePages_Free:   2065
    HugePages_Rsvd:   2065
    Hugepagesize:     2048 kB
  • How to check which application or process is using which amount of HugePages.
  • How to find per-process hugepages utilization.

Environment

  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • HugePages or TransparentHugePages configured

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