All Apps and Add-ons

Disable THP in AWS (Linux AMI)

jtrujillo
Path Finder

How do you disable Transparent Hugepages in an Amazon AWS environment that doesn't support systemctl or systemd?

0 Karma
1 Solution

jtrujillo
Path Finder

Here is a way to keep THP turned off even after reboot.

Step1

sudo vi /etc/init.d/disable-transparent-hugepages

Step 2

#!/bin/sh
### BEGIN INIT INFO
# Provides:          disable-transparent-hugepages
# Required-Start:    $local_fs
# Required-Stop:
# X-Start-Before:    mongod mongodb-mms-automation-agent
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Disable Linux transparent huge pages
# Description:       Disable Linux transparent huge pages, to improve
#                    database performance.
### END INIT INFO

case $1 in   start)
    if [ -d /sys/kernel/mm/transparent_hugepage ]; then
      thp_path=/sys/kernel/mm/transparent_hugepage
    elif [ -d /sys/kernel/mm/redhat_transparent_hugepage ]; then
      thp_path=/sys/kernel/mm/redhat_transparent_hugepage
    else
      return 0
    fi

    echo 'never' > ${thp_path}/enabled
    echo 'never' > ${thp_path}/defrag

    unset thp_path
    ;; 
esac 

Step 3

sudo chmod 755 /etc/init.d/disable-transparent-hugepages 

Step4

sudo chkconfig --add disable-transparent-hugepages

Reference:

http://serverfault.com/questions/688392/disable-thp-and-thp-defrag-on-centos-7-ec2-instance

View solution in original post

jtrujillo
Path Finder

Here is a way to keep THP turned off even after reboot.

Step1

sudo vi /etc/init.d/disable-transparent-hugepages

Step 2

#!/bin/sh
### BEGIN INIT INFO
# Provides:          disable-transparent-hugepages
# Required-Start:    $local_fs
# Required-Stop:
# X-Start-Before:    mongod mongodb-mms-automation-agent
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Disable Linux transparent huge pages
# Description:       Disable Linux transparent huge pages, to improve
#                    database performance.
### END INIT INFO

case $1 in   start)
    if [ -d /sys/kernel/mm/transparent_hugepage ]; then
      thp_path=/sys/kernel/mm/transparent_hugepage
    elif [ -d /sys/kernel/mm/redhat_transparent_hugepage ]; then
      thp_path=/sys/kernel/mm/redhat_transparent_hugepage
    else
      return 0
    fi

    echo 'never' > ${thp_path}/enabled
    echo 'never' > ${thp_path}/defrag

    unset thp_path
    ;; 
esac 

Step 3

sudo chmod 755 /etc/init.d/disable-transparent-hugepages 

Step4

sudo chkconfig --add disable-transparent-hugepages

Reference:

http://serverfault.com/questions/688392/disable-thp-and-thp-defrag-on-centos-7-ec2-instance

Get Updates on the Splunk Community!

Introducing Splunk Enterprise 9.2

WATCH HERE! Watch this Tech Talk to learn about the latest features and enhancements shipped in the new Splunk ...

Adoption of RUM and APM at Splunk

    Unleash the power of Splunk Observability   Watch Now In this can't miss Tech Talk! The Splunk Growth ...

Routing logs with Splunk OTel Collector for Kubernetes

The Splunk Distribution of the OpenTelemetry (OTel) Collector is a product that provides a way to ingest ...