tree bcaeccc9893d99bd2ca1518c3c2347f4eed3d999
parent fceba519e6b9ed17b9f05d292f363cda2412edf4
author Jeff Sharkey <jsharkey@android.com> 1344041875 -0700
committer Jeff Sharkey <jsharkey@android.com> 1344457157 -0700

Add directory tree traversal benchmark.

Generates a directory tree with requested depth, also writing files
at each leaf to add width.  Then it times traversal of entire tree,
which can reveal impact of VFS caching inside kernel.

Also specify mode_t when creating files.

Bug: 6925012
Change-Id: I65370d6fd0b9777e959be3a0867f27ce22ee4644