== sanity test 60c: unlink file when mds full ============ 21:34:44 (1788744884)
create 5000 files
 - open/close 493 (time 1788744899.01 total 10.03 last 49.16)
 - open/close 977 (time 1788744909.02 total 20.03 last 48.37)
 - open/close 1443 (time 1788744919.04 total 30.05 last 46.50)
 - open/close 1905 (time 1788744929.04 total 40.05 last 46.20)
 - open/close 2406 (time 1788744939.07 total 50.08 last 49.95)
 - open/close 2871 (time 1788744949.08 total 60.09 last 46.46)
 - open/close 3326 (time 1788744959.08 total 70.10 last 45.49)
 - open/close 3797 (time 1788744969.09 total 80.11 last 47.05)
 - open/close 4233 (time 1788744979.10 total 90.12 last 43.56)
 - open/close 4648 (time 1788744989.11 total 100.13 last 41.46)
total: 5000 open/close in 109.47 seconds: 45.67 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788745003 ; total 0 ; last 0)
total: 5000 unlinks in 85 seconds: 58.823528 unlinks/second
fail_loc=0