ZFS L2ARC - incorrect size and abnormal system load on r255173

[Mark Felder]

On Mon, Oct 7, 2013, at 13:09, Dmitriy Makarov wrote:
> 
> How can L2 ARC Size: (Adaptive) be 1.44 TiB (up) with total physical size
> of L2ARC devices 490GB?
> 

http://svnweb.freebsd.org/base?view=revision&revision=251478

L2ARC compression perhaps?