== sanity test 60c: unlink file when mds full ============ 19:10:37 (1787440237)
create 5000 files
 - open/close 511 (time 1787440251.93 total 10.02 last 50.98)
 - open/close 976 (time 1787440261.95 total 20.04 last 46.41)
 - open/close 1421 (time 1787440271.96 total 30.05 last 44.47)
 - open/close 2220 (time 1787440281.97 total 40.06 last 79.82)
 - open/close 2795 (time 1787440291.99 total 50.08 last 57.41)
 - open/close 3265 (time 1787440301.99 total 60.08 last 47.00)
 - open/close 3733 (time 1787440312.00 total 70.09 last 46.75)
 - open/close 4174 (time 1787440322.02 total 80.11 last 44.03)
 - open/close 4642 (time 1787440332.02 total 90.11 last 46.77)
total: 5000 open/close in 98.21 seconds: 50.91 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787440344 ; total 0 ; last 0)
total: 5000 unlinks in 80 seconds: 62.500000 unlinks/second
fail_loc=0