== sanity test 60c: unlink file when mds full ============ 17:06:30 (1787432790)
create 5000 files
 - open/close 743 (time 1787432805.26 total 10.00 last 74.28)
 - open/close 1455 (time 1787432815.27 total 20.01 last 71.14)
 - open/close 2072 (time 1787432825.27 total 30.01 last 61.69)
 - open/close 2742 (time 1787432835.27 total 40.02 last 66.98)
 - open/close 3344 (time 1787432845.28 total 50.02 last 60.17)
 - open/close 3879 (time 1787432855.29 total 60.03 last 53.45)
 - open/close 4406 (time 1787432865.30 total 70.04 last 52.64)
 - open/close 4854 (time 1787432875.31 total 80.05 last 44.75)
total: 5000 open/close in 83.37 seconds: 59.98 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787432883 ; total 0 ; last 0)
total: 5000 unlinks in 58 seconds: 86.206894 unlinks/second
fail_loc=0