== sanity test 60c: unlink file when mds full ============ 13:49:24 (1788284964)
create 5000 files
 - open/close 579 (time 1788284979.49 total 10.03 last 57.72)
 - open/close 1091 (time 1788284989.49 total 20.04 last 51.17)
 - open/close 1520 (time 1788284999.50 total 30.05 last 42.85)
 - open/close 1974 (time 1788285009.53 total 40.07 last 45.29)
 - open/close 2459 (time 1788285019.53 total 50.07 last 48.49)
 - open/close 2942 (time 1788285029.53 total 60.08 last 48.28)
 - open/close 3472 (time 1788285039.54 total 70.09 last 52.94)
 - open/close 3990 (time 1788285049.55 total 80.10 last 51.75)
 - open/close 4438 (time 1788285059.57 total 90.12 last 44.71)
 - open/close 4938 (time 1788285069.57 total 100.12 last 50.00)
total: 5000 open/close in 101.34 seconds: 49.34 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788285075 ; total 0 ; last 0)
total: 5000 unlinks in 71 seconds: 70.422539 unlinks/second
fail_loc=0