Modifying Memory Parameters

Purpose

Disable hugepages and configure dirty page parameters to improve overall performance.

Procedure

1. Disable hugepages.

   1 2	echo never > /sys/kernel/mm/transparent_hugepage/enabled echo never > /sys/kernel/mm/transparent_hugepage/defrag

2. Configure dirty page parameters.

   1 2	echo 500 > /proc/sys/vm/dirty_expire_centisecs echo 100 > /proc/sys/vm/dirty_writeback_centisecs

3. Perform the following operations:

   1 2	echo 1 > /proc/sys/kernel/numa_balancing echo 0 > /proc/sys/kernel/sched_autogroup_enabled