== sanity test 60c: unlink file when mds full ============ 15:16:06 (1788462966)
create 5000 files
 - open/close 283 (time 1788462984.46 total 10.00 last 28.30)
 - open/close 516 (time 1788462994.50 total 20.04 last 23.22)
 - open/close 861 (time 1788463004.51 total 30.05 last 34.46)
 - open/close 1225 (time 1788463014.52 total 40.06 last 36.35)
 - open/close 1600 (time 1788463024.55 total 50.09 last 37.38)
 - open/close 2127 (time 1788463034.57 total 60.10 last 52.63)
 - open/close 2562 (time 1788463044.58 total 70.11 last 43.46)
 - open/close 3019 (time 1788463054.59 total 80.12 last 45.66)
 - open/close 3473 (time 1788463064.60 total 90.14 last 45.32)
 - open/close 3878 (time 1788463074.61 total 100.15 last 40.46)
 - open/close 4378 (time 1788463084.62 total 110.16 last 49.95)
 - open/close 4861 (time 1788463094.64 total 120.18 last 48.21)
total: 5000 open/close in 122.93 seconds: 40.67 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788463101 ; total 0 ; last 0)
total: 5000 unlinks in 69 seconds: 72.463768 unlinks/second
fail_loc=0