Add a stress test mode

Bug: 123042197
Fix: 134659300
Test: build_and_run_benchmark.sh stress
Merged-In: Ibf8059dd3c1b7406bd0189cd25a16a716d1f35b9
Change-Id: Ibf8059dd3c1b7406bd0189cd25a16a716d1f35b9
(cherry picked from commit f2a8a3e29b391afa94e74e9d7ef0f6d4501b4ffb)
3 files changed