mkinitcpio.conf

After changing the global configuration, one should execute:

mkinitcpio -P

compression

Can be enabled with:

COMPRESSION='lz4'

Hooks to for

HOOKS=(base udev modconf block keyboard keymap encrypt lvm2 btrfs filesystems fsck resume)

Archwiki (Ext4#Enabling_metadata_checksums)[https://wiki.archlinux.org/title/Ext4#Enabling_metadata_checksums]

If the CPU supports SSE 4.2, make sure the crc32c_intel kernel module is loaded in order to enable the hardware accelerated CRC32C algorithm
https://en.wikipedia.org/wiki/SSE4#SSE4.2
https://bugzilla.redhat.com/show_bug.cgi?id=1874808

On a SSE4.2 capable system, crc32c-intel should be used, not crc32c-generic.

Check your CPU (see the .install script):

lscpu | grep sse4_2

Can be enabled with:

MODULES=('crc32c-intel')