Are you sure that this is a good idea for RHEL7.2/x64 systems?
I had the possibility to test this on our box because I had to catch up 3 days of missing data.
When a disabled THP temporary the indexing rate went down quite considerably.
Commands:
switching THP off:
echo never > /sys/kernel/mm/transparent_hugepage/enabled
echo never > /sys/kernel/mm/transparent_hugepage/defrag
switching THP back on:
echo always > /sys/kernel/mm/transparent_hugepage/enabled
echo always > /sys/kernel/mm/transparent_hugepage/defrag
I'm wondering if the THP Implementation in RHEL7 is better than it was before?
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