== sanity test 60c: unlink file when mds full ============ 06:43:39 (1788864219)
create 5000 files
 - open/close 549 (time 1788864233.88 total 10.01 last 54.83)
 - open/close 1051 (time 1788864243.88 total 20.02 last 50.18)
 - open/close 1565 (time 1788864253.89 total 30.02 last 51.37)
 - open/close 2018 (time 1788864263.90 total 40.04 last 45.24)
 - open/close 2530 (time 1788864273.90 total 50.04 last 51.19)
 - open/close 2968 (time 1788864283.92 total 60.06 last 43.72)
 - open/close 3411 (time 1788864293.94 total 70.08 last 44.22)
 - open/close 3790 (time 1788864303.96 total 80.10 last 37.82)
 - open/close 4211 (time 1788864314.01 total 90.14 last 41.91)
 - open/close 4698 (time 1788864324.01 total 100.15 last 48.68)
total: 5000 open/close in 106.04 seconds: 47.15 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788864335 ; total 0 ; last 0)
total: 5000 unlinks in 61 seconds: 81.967216 unlinks/second
fail_loc=0