== sanity test 60c: unlink file when mds full ============ 18:25:33 (1788560733)
create 5000 files
 - open/close 497 (time 1788560746.92 total 10.00 last 49.68)
 - open/close 903 (time 1788560756.92 total 20.00 last 40.59)
 - open/close 1259 (time 1788560766.95 total 30.03 last 35.50)
 - open/close 1695 (time 1788560776.97 total 40.05 last 43.53)
 - open/close 2121 (time 1788560786.98 total 50.06 last 42.55)
 - open/close 2614 (time 1788560797.00 total 60.08 last 49.18)
 - open/close 3071 (time 1788560807.01 total 70.09 last 45.65)
 - open/close 3524 (time 1788560817.02 total 80.10 last 45.29)
 - open/close 3934 (time 1788560827.03 total 90.11 last 40.96)
 - open/close 4357 (time 1788560837.05 total 100.13 last 42.19)
 - open/close 4749 (time 1788560847.07 total 110.15 last 39.14)
total: 5000 open/close in 115.95 seconds: 43.12 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788560857 ; total 0 ; last 0)
total: 5000 unlinks in 83 seconds: 60.240963 unlinks/second
fail_loc=0