Compiling a single Linux kernel module

   1 make -C /lib/modules/`unam e -r`/build M=`pwd`

Disable IPv6

Add ipv6.disable=1 as a kernel boot parameter.

Empty disk cache

Forces the Linux kernel to discard/invalidate all disk caches. 

   1 sync
   2 echo 3 > /proc/sys/vm/drop_caches

CategoryCheatSheet