LULZ TEST
config changes
change read ahead back to stock
revert un needed change to frequency table
SCREEN TEST
undo some test changes and clean up some stuffs
add dmcache and perform some house keeping
revert me
Revert "revert me"

This reverts commit a12b482407a1d951ca3c58276866ca468f5e91d2.
revert me also
Revert "revert me also"

This reverts commit 20e26edf647f4babd73b5e025d6426dc46d5149a.
this is just FRANDOM
config update