== sanity test 60c: unlink file when mds full ============ 16:32:07 (1771968727)
create 5000 files
 - open/close 1110 (time 1771968739.69 total 10.01 last 110.93)
 - open/close 2340 (time 1771968749.70 total 20.01 last 122.99)
 - open/close 3533 (time 1771968759.70 total 30.02 last 119.21)
 - open/close 4683 (time 1771968769.74 total 40.05 last 114.62)
total: 5000 open/close in 42.86 seconds: 116.66 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1771968775 ; total 0 ; last 0)
total: 5000 unlinks in 25 seconds: 200.000000 unlinks/second
fail_loc=0