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+++ This bug was initially created as a clone of Bug #2131246 +++
Description of problem:
As described in bug 2068120, THP can have negative effects on RHDS performance.
This seems to happen with large caches.
Some customers are getting uncontrolled memory usage while others are seeing high CPU consumption.
It would make sense to either disable THP for RHDS or at least add some messages in the errors logs.
RHDS healthcheck tool should also report when THP is enabled on the system.
Version-Release number of selected component (if applicable):
This is impacting all RHDS 11 and 12 versions.
How reproducible:
At customer sites.
Steps to Reproduce:
1. Configure large caches ( > 50 GB )
2. Check memory and CPU usage when RHDS is under heavy load
3. Disable THP ==> RHDS uses less memory and CPU
Actual results:
High memory and CPU usage.
Expected results:
Controlled memory and CPU usage.
Additional info:
https://access.redhat.com/solutions/3799821