Diagnostic Signature: HugePagesNotUtilized

A new diagnostic signature, HugePagesNotUtilized, has been introduced in AHF 25.11.

This enhancement automatically detects cases where HugePages are configured (that is, HugePages_Total is nonzero) but remain completely unused (HugePages_Total = HugePages_Free). When this condition is detected, the signature generates a clear alert in the analysis report, making it immediately visible to users including developers and support engineers that HugePages are not being utilized as expected.

By providing a precise and actionable notification, rather than a generic low-utilization warning, this feature helps users quickly identify potential memory configuration issues. This improves triage efficiency, accelerates troubleshooting, and ensures system resources are used effectively.

Accessing this Feature

You can view this diagnostic in the orachk report under the CHM analysis section.

Figure 4-7: HugePagesNotUtilized Signature in Orachk CHM Analysis section

Figure 4-8: HugePagesNotUtilized Signature in Orachk CHM Analysis section