== sanity test 60c: unlink file when mds full ============ 14:42:40 (1789497760)
create 5000 files
 - open/close 503 (time 1789497776.12 total 10.04 last 50.11)
 - open/close 1107 (time 1789497786.12 total 20.04 last 60.39)
 - open/close 1694 (time 1789497796.13 total 30.05 last 58.63)
 - open/close 2236 (time 1789497806.14 total 40.06 last 54.16)
 - open/close 2731 (time 1789497816.17 total 50.09 last 49.36)
 - open/close 3269 (time 1789497826.18 total 60.10 last 53.74)
 - open/close 3759 (time 1789497836.20 total 70.11 last 48.93)
 - open/close 4206 (time 1789497846.20 total 80.12 last 44.67)
 - open/close 4686 (time 1789497856.21 total 90.12 last 47.99)
total: 5000 open/close in 96.49 seconds: 51.82 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789497867 ; total 0 ; last 0)
total: 5000 unlinks in 69 seconds: 72.463768 unlinks/second
fail_loc=0