== sanity test 60c: unlink file when mds full ============ 16:28:10 (1788726490)
create 5000 files
 - open/close 446 (time 1788726504.78 total 10.00 last 44.59)
 - open/close 909 (time 1788726514.79 total 20.01 last 46.26)
 - open/close 1367 (time 1788726524.80 total 30.02 last 45.73)
 - open/close 1858 (time 1788726534.81 total 40.03 last 49.06)
 - open/close 2343 (time 1788726544.81 total 50.03 last 48.50)
 - open/close 2825 (time 1788726554.85 total 60.07 last 48.02)
 - open/close 3261 (time 1788726564.85 total 70.07 last 43.59)
 - open/close 3710 (time 1788726574.86 total 80.08 last 44.86)
 - open/close 4131 (time 1788726584.87 total 90.09 last 42.04)
 - open/close 4518 (time 1788726594.87 total 100.09 last 38.69)
 - open/close 4895 (time 1788726604.89 total 110.11 last 37.66)
total: 5000 open/close in 112.56 seconds: 44.42 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788726612 ; total 0 ; last 0)
total: 5000 unlinks in 84 seconds: 59.523811 unlinks/second
fail_loc=0