Does Red Hat have any tuning recommendations for large Bull systems to achieve maximum performance under extreme memory pressure?

Solution Verified - Updated -

Environment

Bull bullion S16 system
Bull BULLX S6130
Workload with extreme memory usage

Resolution

Disabling transparent hugepages will allow this system to reclaim pagecache pages more quickly when under extreme memory pressure. Directions for disabling transparent hugepages in Red Hat Enterprise Linux 7 can be found in this Red Hat Knowledgebase article: https://access.redhat.com/solutions/1320153

Note that the system will still function acceptably without this change.

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