== sanity test 60c: unlink file when mds full ============ 23:03:09 (1788836589)
create 5000 files
 - open/close 456 (time 1788836604.02 total 10.03 last 45.46)
 - open/close 913 (time 1788836614.03 total 20.04 last 45.65)
 - open/close 1353 (time 1788836624.04 total 30.05 last 43.98)
 - open/close 1781 (time 1788836634.05 total 40.05 last 42.76)
 - open/close 2272 (time 1788836644.06 total 50.06 last 49.06)
 - open/close 2747 (time 1788836654.06 total 60.07 last 47.46)
 - open/close 3236 (time 1788836664.08 total 70.09 last 48.81)
 - open/close 3698 (time 1788836674.09 total 80.10 last 46.16)
 - open/close 4181 (time 1788836684.10 total 90.11 last 48.25)
 - open/close 4642 (time 1788836694.11 total 100.12 last 46.07)
total: 5000 open/close in 107.66 seconds: 46.44 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788836705 ; total 0 ; last 0)
total: 5000 unlinks in 92 seconds: 54.347828 unlinks/second
fail_loc=0