== sanity test 60c: unlink file when mds full ============ 23:03:21 (1788836601)
create 5000 files
 - open/close 566 (time 1788836614.82 total 10.01 last 56.56)
 - open/close 1121 (time 1788836624.83 total 20.02 last 55.44)
 - open/close 1658 (time 1788836634.84 total 30.02 last 53.69)
 - open/close 2202 (time 1788836644.84 total 40.02 last 54.38)
 - open/close 2704 (time 1788836654.85 total 50.04 last 50.13)
 - open/close 3241 (time 1788836664.86 total 60.04 last 53.69)
 - open/close 3762 (time 1788836674.86 total 70.04 last 52.08)
 - open/close 4291 (time 1788836684.86 total 80.04 last 52.90)
 - open/close 4782 (time 1788836694.87 total 90.05 last 49.07)
total: 5000 open/close in 93.97 seconds: 53.21 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788836702 ; total 0 ; last 0)
total: 5000 unlinks in 62 seconds: 80.645164 unlinks/second
fail_loc=0