== sanity test 60c: unlink file when mds full ============ 15:12:05 (1787771525)
create 5000 files
 - open/close 502 (time 1787771542.43 total 10.00 last 50.20)
 - open/close 1205 (time 1787771552.44 total 20.01 last 70.22)
 - open/close 1800 (time 1787771562.44 total 30.02 last 59.48)
 - open/close 2494 (time 1787771572.44 total 40.02 last 69.37)
 - open/close 3150 (time 1787771582.45 total 50.03 last 65.54)
 - open/close 3906 (time 1787771592.46 total 60.04 last 75.53)
 - open/close 4693 (time 1787771602.47 total 70.05 last 78.63)
total: 5000 open/close in 73.72 seconds: 67.82 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787771610 ; total 0 ; last 0)
total: 5000 unlinks in 55 seconds: 90.909088 unlinks/second
fail_loc=0