Chapter 2. The 64k page size kernel

Use 4k pages for more efficient memory usage in smaller environments, such as those in Edge and lower-cost, small cloud instances. In these environments, increasing the physical system memory amounts is not practical due to space, power, and cost constraints. Furthermore, not all 64-bit ARM architecture processors support a 64k page size.

The 4k pages kernel supports graphical installation by using Anaconda, system or cloud image-based installations, as well as advanced installations by using Kickstart.

The 64k page size kernel is a useful option for large datasets on ARM platforms. kernel-64k is suitable for memory-intensive workloads as it has significant gains in overall system performance, namely in large database, HPC, and high network performance.

You must choose page size on 64-bit ARM architecture systems at the time of installation. You can install kernel-64k only by Kickstart by adding the kernel-64k package to the package list in the Kickstart file.