== sanity test 60c: unlink file when mds full ============ 08:19:34 (1788869974)
create 5000 files
 - open/close 436 (time 1788869990.65 total 10.01 last 43.55)
 - open/close 1013 (time 1788870000.67 total 20.03 last 57.59)
 - open/close 1662 (time 1788870010.68 total 30.04 last 64.83)
 - open/close 2270 (time 1788870020.70 total 40.06 last 60.70)
 - open/close 2873 (time 1788870030.71 total 50.07 last 60.24)
 - open/close 3435 (time 1788870040.71 total 60.07 last 56.19)
 - open/close 4038 (time 1788870050.71 total 70.07 last 60.30)
 - open/close 4618 (time 1788870060.72 total 80.08 last 57.95)
total: 5000 open/close in 88.38 seconds: 56.57 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788870073 ; total 0 ; last 0)
total: 5000 unlinks in 62 seconds: 80.645164 unlinks/second
fail_loc=0