How to enable Hugepages

Enabling Hugepages for Cozystack can be done both on initial installation and at any time after it. Applying this configuration after installation will require a full node reboot.

Read more in the Linux Kernel documentation: HugeTLB Pages.

Using Talm

Requires Talm v0.16.0 or later.

1. Add the following lines to values.yaml:

   ...
   certSANs: []
   nr_hugepages: 3000
   

   vm.nr_hugepages is the count of pages per 2Mi.

2. Apply the configuration:

   talm apply -f nodes/node0.yaml
   

3. Finally, reboot the nodes:

   talm -f nodes/node0.yaml reboot
   

Using talosctl

1. Add the following lines to your node template:

   machine:
     sysctls:
       vm.nr_hugepages: "3000"
   

   vm.nr_hugepages is the count of pages per 2Mi.

2. Apply the configuration:

   talosctl apply -f nodetemplate.yaml -n 192.168.123.11 -e 192.168.123.11
   

3. Reboot the nodes:

   talosctl reboot -n 192.168.123.11 -e 192.168.123.11