== sanity test 60c: unlink file when mds full ============ 17:53:55 (1784584435)
create 5000 files
 - open/close 473 (time 1784584448.90 total 10.00 last 47.29)
 - open/close 940 (time 1784584458.93 total 20.03 last 46.58)
 - open/close 1393 (time 1784584468.93 total 30.03 last 45.28)
 - open/close 1891 (time 1784584478.95 total 40.05 last 49.73)
 - open/close 2395 (time 1784584488.95 total 50.05 last 50.37)
 - open/close 2862 (time 1784584498.96 total 60.06 last 46.68)
 - open/close 3319 (time 1784584508.96 total 70.06 last 45.68)
 - open/close 3822 (time 1784584518.96 total 80.07 last 50.28)
 - open/close 4254 (time 1784584528.97 total 90.07 last 43.16)
 - open/close 4727 (time 1784584538.98 total 100.08 last 47.29)
total: 5000 open/close in 105.22 seconds: 47.52 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1784584547 ; total 0 ; last 0)
total: 5000 unlinks in 75 seconds: 66.666664 unlinks/second
fail_loc=0