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Chapter 11. Performance and Scalability

KSM Enhancements

Kernel Shared Memory (KSM) has been enhanced to consider non-uniform memory access (NUMA) when coalescing pages, which improves performance of the applications on the system. Also, additional page types have been included to increase the density of applications available for Red Hat OpenShift.

tuned updates

tuned profiles have been refined to provide optimum performance for particular scenarios.