== sanity test 60c: unlink file when mds full ============ 21:14:54 (1780449294)
create 5000 files
 - open/close 511 (time 1780449309.23 total 10.02 last 50.98)
 - open/close 1018 (time 1780449319.24 total 20.03 last 50.68)
 - open/close 1545 (time 1780449329.24 total 30.03 last 52.68)
 - open/close 1935 (time 1780449339.26 total 40.05 last 38.92)
 - open/close 2311 (time 1780449349.27 total 50.06 last 37.57)
 - open/close 2714 (time 1780449359.27 total 60.07 last 40.28)
 - open/close 3144 (time 1780449369.30 total 70.09 last 42.90)
 - open/close 3506 (time 1780449379.33 total 80.12 last 36.08)
 - open/close 3905 (time 1780449389.33 total 90.13 last 39.89)
 - open/close 4402 (time 1780449399.34 total 100.13 last 49.69)
 - open/close 4914 (time 1780449409.34 total 110.13 last 51.19)
total: 5000 open/close in 112.54 seconds: 44.43 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1780449416 ; total 0 ; last 0)
total: 5000 unlinks in 79 seconds: 63.291138 unlinks/second
fail_loc=0