== sanity test 60c: unlink file when mds full ============ 16:40:58 (1788640858)
create 5000 files
 - open/close 642 (time 1788640871.41 total 10.02 last 64.09)
 - open/close 1257 (time 1788640881.43 total 20.04 last 61.39)
 - open/close 1864 (time 1788640891.44 total 30.05 last 60.61)
 - open/close 2435 (time 1788640901.45 total 40.06 last 57.04)
 - open/close 2979 (time 1788640911.46 total 50.07 last 54.34)
 - open/close 3551 (time 1788640921.47 total 60.08 last 57.17)
 - open/close 4121 (time 1788640931.48 total 70.09 last 56.93)
 - open/close 4665 (time 1788640941.50 total 80.11 last 54.27)
total: 5000 open/close in 86.76 seconds: 57.63 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788640952 ; total 0 ; last 0)
total: 5000 unlinks in 64 seconds: 78.125000 unlinks/second
fail_loc=0