== sanity test 60c: unlink file when mds full ============ 01:20:29 (1787548829)
create 5000 files
 - open/close 603 (time 1787548844.01 total 10.00 last 60.28)
 - open/close 1129 (time 1787548854.02 total 20.01 last 52.55)
 - open/close 1706 (time 1787548864.03 total 30.01 last 57.69)
 - open/close 2265 (time 1787548874.04 total 40.03 last 55.82)
 - open/close 2713 (time 1787548884.06 total 50.05 last 44.69)
 - open/close 3221 (time 1787548894.07 total 60.05 last 50.79)
 - open/close 3770 (time 1787548904.07 total 70.06 last 54.89)
 - open/close 4325 (time 1787548914.08 total 80.07 last 55.45)
 - open/close 4861 (time 1787548924.08 total 90.07 last 53.59)
total: 5000 open/close in 93.01 seconds: 53.75 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787548931 ; total 0 ; last 0)
total: 5000 unlinks in 66 seconds: 75.757576 unlinks/second
fail_loc=0