== sanity test 60c: unlink file when mds full ============ 12:44:49 (1789058689)
create 5000 files
 - open/close 445 (time 1789058705.11 total 10.00 last 44.49)
 - open/close 935 (time 1789058715.11 total 20.01 last 48.96)
 - open/close 1387 (time 1789058725.12 total 30.01 last 45.19)
 - open/close 1774 (time 1789058735.14 total 40.04 last 38.60)
 - open/close 2080 (time 1789058745.16 total 50.06 last 30.54)
 - open/close 2518 (time 1789058755.20 total 60.10 last 43.64)
 - open/close 2914 (time 1789058765.21 total 70.11 last 39.55)
 - open/close 3349 (time 1789058775.21 total 80.11 last 43.50)
 - open/close 3837 (time 1789058785.21 total 90.11 last 48.80)
 - open/close 4195 (time 1789058795.22 total 100.11 last 35.78)
 - open/close 4615 (time 1789058805.23 total 110.13 last 41.94)
total: 5000 open/close in 118.34 seconds: 42.25 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789058819 ; total 1 ; last 1)
total: 5000 unlinks in 76 seconds: 65.789474 unlinks/second
fail_loc=0