What do I need to do to get LatencyTop working on Centos 6.2?
Does it involve compiling a debug kernel with some extra flags?
Both the man page and the website are very short of information.
EDIT: I should have been more specific, sorry, my bad. I've installed it fine from an rpm. But apparently the stock Centos 6.2 kernel doesn't support it:
mount: none already mounted or /sys/kernel/debug/ busy mount: according to mtab, none is already mounted on /sys/kernel/debug Xlib: extension "RANDR" missing on display "localhost:10.0". The running kernel does not support latencytop. Please use kernel-debug.
No idea how to install and use kernel-debug safely though, if this is the only extra thing that needs to be done. Does anyone have any pointers?