== sanity test 60c: unlink file when mds full ============ 19:17:48 (1788650268)
create 5000 files
 - open/close 471 (time 1788650282.71 total 10.01 last 47.06)
 - open/close 906 (time 1788650292.73 total 20.02 last 43.45)
 - open/close 1311 (time 1788650302.73 total 30.02 last 40.50)
 - open/close 1750 (time 1788650312.75 total 40.05 last 43.79)
 - open/close 2138 (time 1788650322.75 total 50.05 last 38.80)
 - open/close 2601 (time 1788650332.78 total 60.08 last 46.16)
 - open/close 3050 (time 1788650342.79 total 70.09 last 44.85)
 - open/close 3499 (time 1788650352.80 total 80.09 last 44.89)
 - open/close 3925 (time 1788650362.81 total 90.11 last 42.53)
 - open/close 4369 (time 1788650372.82 total 100.12 last 44.36)
 - open/close 4799 (time 1788650382.83 total 110.12 last 42.97)
total: 5000 open/close in 114.55 seconds: 43.65 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788650391 ; total 0 ; last 0)
total: 5000 unlinks in 81 seconds: 61.728394 unlinks/second
fail_loc=0