== sanity test 60c: unlink file when mds full ============ 01:23:46 (1788585826)
create 5000 files
 - open/close 451 (time 1788585841.28 total 10.00 last 45.08)
 - open/close 1026 (time 1788585851.28 total 20.01 last 57.48)
 - open/close 1536 (time 1788585861.28 total 30.01 last 51.00)
 - open/close 2183 (time 1788585871.29 total 40.01 last 64.69)
 - open/close 2767 (time 1788585881.29 total 50.01 last 58.38)
 - open/close 3217 (time 1788585891.31 total 60.03 last 44.91)
 - open/close 3628 (time 1788585901.33 total 70.05 last 41.03)
 - open/close 4123 (time 1788585911.35 total 80.07 last 49.40)
 - open/close 4584 (time 1788585921.36 total 90.09 last 46.02)
total: 5000 open/close in 97.73 seconds: 51.16 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788585933 ; total 0 ; last 0)
total: 5000 unlinks in 68 seconds: 73.529411 unlinks/second
fail_loc=0