I was recently going through the configuration options on compiling a custom kernel for Scientific Linux 6 (aka RHEL 6 Clone) and I happened to find the kernel is being compiled to run tickless by default. Red Hat's documentation also confirms that the Kernel is indeed tickless by default: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Power_Mana... Not knowing what a tickless meant, I went on and googled and found my answer to what a tickless kernel is. Then I decided to search up on tickless kernels with FreeSwitch and found out that 2 years ago somebody brought up the tickless kernel issue on this mailing list before and bkw did recommend in the past that users should disable the tickless feature of the kernel. Fast forwarding today is it still the case that when a user runs FreeSwitch, they should disable the tickless feature of the kernel? If so, I'd probably be adding the grub option of disabling the tickless feature with the kernel and adding this tidbit of information to the wiki.