[Freeswitch-users] Reinstall FreeSWITCH after new kernel?

I've read a lot about the kernel timer and how it should be on 1000hz. My clean install of Ubuntu has 100hz. So I guess I have to recompile the kernel to 1000hz? If so, does I have to reinstall FreeSWITCH after the new kernel compile? And does anyone knows of any tutorial about recompiling a Ubuntu 10.04 LTS kernel to 1000hz?