Where does Blender store the BVH cache?

Hi all,
I’ve been exploring the performance tab under the render properties. I was able to speed up the re-rendering of my dense scene greatly by checking “Cache BVH” and “Persistent Images.” I was wondering where does Blender store this cache? It’s not with the .blend file or in the tmp folder. I couldn’t find anything on this in the user manual.
Thanks for any help,

Forgot to mention: blender 2.71, cycles, on windows 8

You should be able to find that under C:\Users\your_username\AppData\Roaming\Blender Foundation\2.71\cache.

Found it! Thanks!