Unixcop published a tutorial about installing KernelCare and clear Kernelcare Cache in Linux.
How to install KernelCare and clear Kernelcare Cache in Linux
KernelCare is fabulous kernel update tool by CloudLinux. We started testing this kernel patch in a few servers and the result has been truly amazing, allowing us to avoid server downtime after kernel updates because of each server reboot we had to apply after the kernel was updated.