== sanity test 60c: unlink file when mds full ============ 08:59:43 (1789477183)
create 5000 files
 - open/close 561 (time 1789477198.26 total 10.00 last 56.09)
 - open/close 1119 (time 1789477208.28 total 20.02 last 55.72)
 - open/close 1703 (time 1789477218.30 total 30.04 last 58.26)
 - open/close 2258 (time 1789477228.31 total 40.05 last 55.44)
 - open/close 2828 (time 1789477238.32 total 50.05 last 56.98)
 - open/close 3389 (time 1789477248.33 total 60.06 last 56.05)
 - open/close 3965 (time 1789477258.34 total 70.08 last 57.50)
 - open/close 4502 (time 1789477268.35 total 80.09 last 53.66)
total: 5000 open/close in 89.26 seconds: 56.02 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789477282 ; total 0 ; last 0)
total: 5000 unlinks in 62 seconds: 80.645164 unlinks/second
fail_loc=0