Latencies, schedulers, interrupts oh my! The epic story of a Linux Kernel upgrade

By Harshit Agarwal and Samuel Gaver Introduction Nutanix is a hyperconverged platform, and all its services (including storage services) run on a special virtual machine (VM) called the controller VM (CVM). This CVM currently runs the CentOS Linux distribution with kernel version 3.10. Unfortunately, this kernel version is quite old and poses a few challenges, …