== sanity test 60c: unlink file when mds full ============ 12:59:47 (1780333187)
create 5000 files
 - open/close 452 (time 1780333202.51 total 10.01 last 45.15)
 - open/close 851 (time 1780333212.53 total 20.03 last 39.82)
 - open/close 1286 (time 1780333222.54 total 30.04 last 43.47)
 - open/close 1741 (time 1780333232.54 total 40.04 last 45.50)
 - open/close 2324 (time 1780333242.55 total 50.06 last 58.19)
 - open/close 2831 (time 1780333252.59 total 60.09 last 50.52)
 - open/close 3279 (time 1780333262.60 total 70.10 last 44.76)
 - open/close 3757 (time 1780333272.61 total 80.11 last 47.75)
 - open/close 4304 (time 1780333282.62 total 90.12 last 54.67)
 - open/close 4878 (time 1780333292.63 total 100.13 last 57.33)
total: 5000 open/close in 102.62 seconds: 48.72 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1780333300 ; total 0 ; last 0)
total: 5000 unlinks in 75 seconds: 66.666664 unlinks/second
fail_loc=0