== sanity test 60c: unlink file when mds full ============ 02:57:50 (1753426670)
create 5000 files
 - open/close 1367 (time 1753426682.15 total 10.01 last 136.57)
 - open/close 2699 (time 1753426692.15 total 20.01 last 133.16)
 - open/close 4417 (time 1753426702.16 total 30.02 last 171.72)
total: 5000 open/close in 32.94 seconds: 151.79 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1753426706 ; total 0 ; last 0)
total: 5000 unlinks in 21 seconds: 238.095245 unlinks/second
fail_loc=0