switch clocksource to tsc on boot - ubuntu 16.04

cloud-init.bash

## Step 1) install/ensure sysfsutils is installed
sudo apt-get install sysfsutils

# ---------------------------------
# Manage /sys filesystem. Requires sysfsutils package

## Turn off THP
sudo tee -a /etc/sysfs.d/thp.conf <<-EOF 
kernel/mm/transparent_hugepage/enabled = never
kernel/mm/transparent_hugepage/khugepaged/defrag = 0
kernel/mm/transparent_hugepage/defrag = never
EOF

## Set clocksource to tsc to speed everything up https://www.youtube.com/watch?v=agQMFIWr2h4
sudo tee -a /etc/sysfs.d/clocksource.conf <<-EOF 
devices/system/clocksource/clocksource0/current_clocksource = tsc
EOF
# ---------------------------------

sudo systemctl enable sysfsutils.service
sudo systemctl start sysfsutils.service