== sanity test 60c: unlink file when mds full ============ 08:32:52 (1789302772)
create 5000 files
 - open/close 477 (time 1789302786.96 total 10.04 last 47.50)
 - open/close 843 (time 1789302796.99 total 20.07 last 36.51)
 - open/close 1223 (time 1789302806.99 total 30.07 last 38.00)
 - open/close 1669 (time 1789302817.00 total 40.07 last 44.57)
 - open/close 2044 (time 1789302827.01 total 50.09 last 37.45)
 - open/close 2544 (time 1789302837.03 total 60.10 last 49.92)
 - open/close 2953 (time 1789302847.04 total 70.12 last 40.84)
 - open/close 3399 (time 1789302857.07 total 80.15 last 44.45)
 - open/close 3822 (time 1789302867.09 total 90.17 last 42.24)
 - open/close 4251 (time 1789302877.10 total 100.17 last 42.87)
 - open/close 4652 (time 1789302887.11 total 110.19 last 40.03)
total: 5000 open/close in 118.00 seconds: 42.37 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789302899 ; total 0 ; last 0)
total: 5000 unlinks in 79 seconds: 63.291138 unlinks/second
fail_loc=0