Fix the problem when rerun the experiment the data is not cached.

Test: Rerun crosperf with --rerun=True, the cache changed.

PRESUBMIT=passed
R=llozano,shenhan
APPROVED=llozano
DELTA=5  (1 added, 0 deleted, 4 changed)
RCL=66057-p2
RDATE=2013/02/25 14:35:00


P4 change: 43077449
1 file changed
tree: ca25ee55cb54f6074d2b8d8703d206a90773581e
  1. .git5_specs/
  2. v14/