"Other space is used but can be more easily controlled by tuning for
- memtable
- compaction
- key cache
- row cache"

Isn't row cache stored off-heap since a while ?

2013/1/31 Bryan Talbot <btalbot@aeriagames.com>
On Wed, Jan 30, 2013 at 2:44 PM, Guillermo Barbero <guillermo.barbero@spotbros.com> wrote:
 WARN [MemoryMeter:1] 2013-01-30 21:37:48,079 Memtable.java (line 202) setting live ratio to maximum of 64.0 instead of 751.6512549537648

This looks interesting.  Doesn't this mean that the ratio of space used for that CF for memory to serialized form is 751:1 but was forced to a lower "sane" value?