== sanity test 60c: unlink file when mds full ============ 22:50:41 (1790736641)
create 5000 files
 - open/close 609 (time 1790736655.25 total 10.00 last 60.89)
 - open/close 1189 (time 1790736665.26 total 20.01 last 57.98)
 - open/close 1814 (time 1790736675.27 total 30.02 last 62.43)
 - open/close 2442 (time 1790736685.27 total 40.02 last 62.79)
 - open/close 3052 (time 1790736695.28 total 50.03 last 60.96)
 - open/close 3663 (time 1790736705.28 total 60.03 last 61.07)
 - open/close 4231 (time 1790736715.29 total 70.04 last 56.74)
 - open/close 4824 (time 1790736725.29 total 80.04 last 59.29)
total: 5000 open/close in 83.31 seconds: 60.01 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1790736732 ; total 0 ; last 0)
total: 5000 unlinks in 64 seconds: 78.125000 unlinks/second
fail_loc=0