== sanity test 60c: unlink file when mds full ============ 23:58:31 (1788839911)
create 5000 files
 - open/close 418 (time 1788839925.99 total 10.01 last 41.76)
 - open/close 874 (time 1788839936.00 total 20.03 last 45.53)
 - open/close 1317 (time 1788839946.02 total 30.04 last 44.23)
 - open/close 1738 (time 1788839956.05 total 40.07 last 41.99)
 - open/close 2120 (time 1788839966.07 total 50.09 last 38.10)
 - open/close 2511 (time 1788839976.09 total 60.11 last 39.03)
 - open/close 2941 (time 1788839986.09 total 70.11 last 42.99)
 - open/close 3333 (time 1788839996.10 total 80.12 last 39.17)
 - open/close 3726 (time 1788840006.12 total 90.14 last 39.20)
 - open/close 4158 (time 1788840016.13 total 100.15 last 43.19)
 - open/close 4550 (time 1788840026.14 total 110.16 last 39.16)
 - open/close 4954 (time 1788840036.16 total 120.18 last 40.31)
total: 5000 open/close in 121.53 seconds: 41.14 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788840041 ; total 0 ; last 0)
total: 5000 unlinks in 85 seconds: 58.823528 unlinks/second
fail_loc=0