== sanity test 60c: unlink file when mds full ============ 01:16:56 (1789708616)
create 5000 files
 - open/close 1153 (time 1789708628.60 total 10.01 last 115.23)
 - open/close 2233 (time 1789708638.60 total 20.01 last 107.97)
 - open/close 3298 (time 1789708648.60 total 30.01 last 106.48)
 - open/close 4385 (time 1789708658.61 total 40.01 last 108.65)
total: 5000 open/close in 46.01 seconds: 108.68 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789708666 ; total 0 ; last 0)
total: 5000 unlinks in 79 seconds: 63.291138 unlinks/second
fail_loc=0