SDP-442
Open
os_tweaks.sh does not permanently disable THP transparent huge pages
It only does it for the running system, but on reboot things will be back to previous state.
Options include advising the user what to do, or just doing it.
Update - this seems to be easiest way to do things:
https://askubuntu.com/questions/597372/how-do-i-modify-sys-kernel-mm-transparent-hugepage-enabled/610707#610707
So using sysfsutils package - available for Unbuntu and CentOS and not dependent on systemd vs rc.local.
Old way:
For example /etc/rc.local can be updated to contain:
if test -f /sys/kernel/mm/transparent_hugepage/enabled; then
echo never > /sys/kernel/mm/transparent_hugepage/enabled
fi
But this doesn't work on CentOS 7 for example without turning on rc.local service.
https://www.thegeekdiary.com/how-to-execute-scripts-commands-using-etc-rc-d-rc-local-in-centos-rhel-7/
Investigations required perhaps.
Also we should update os_tweaks.sh for AWS Linux/Linux 2
It only does it for the running system, but on reboot things will be back to previous state.
Options include advising the user what to do, or just doing it.
Update - this seems to be easiest way to do things:
https://askubuntu.com/questions/597372/how-do-i-modify-sys-kernel-mm-transparent-hugepage-enabled/610707#610707
So using sysfsutils package - available for Unbuntu and CentOS and not dependent on systemd vs rc.local.
Old way:
For example /etc/rc.local can be updated to contain:
if test -f /sys/kernel/mm/transparent_hugepage/enabled; then
echo never > /sys/kernel/mm/transparent_hugepage/enabled
fi
But this doesn't work on CentOS 7 for example without turning on rc.local service.
https://www.thegeekdiary.com/how-to-execute-scripts-commands-using-etc-rc-d-rc-local-in-centos-rhel-7/
Investigations required perhaps.
Also we should update os_tweaks.sh for AWS Linux/Linux 2
- Status
- Open
- Project
- perforce-software-sdp
- Severity
- B
- Reported By
- Robert Cowham
- Reported Date
- Modified By
- C. Thomas Tyler
- Modified Date
- Owned By
- robert_cowham
- Component
- setup
- Type
- Bug