== sanity test 60c: unlink file when mds full ============ 07:59:32 (1788523172)
create 5000 files
 - open/close 468 (time 1788523186.45 total 10.03 last 46.65)
 - open/close 926 (time 1788523196.47 total 20.05 last 45.70)
 - open/close 1471 (time 1788523206.48 total 30.06 last 54.47)
 - open/close 1877 (time 1788523216.48 total 40.06 last 40.59)
 - open/close 2394 (time 1788523226.49 total 50.07 last 51.65)
 - open/close 2833 (time 1788523236.52 total 60.11 last 43.75)
 - open/close 3252 (time 1788523246.54 total 70.12 last 41.83)
 - open/close 3681 (time 1788523256.55 total 80.13 last 42.86)
 - open/close 4103 (time 1788523266.56 total 90.14 last 42.15)
 - open/close 4590 (time 1788523276.57 total 100.16 last 48.64)
total: 5000 open/close in 109.49 seconds: 45.67 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788523291 ; total 0 ; last 0)
total: 5000 unlinks in 75 seconds: 66.666664 unlinks/second
fail_loc=0