== sanity test 60c: unlink file when mds full ============ 17:35:04 (1788212104)
create 5000 files
 - open/close 399 (time 1788212120.48 total 10.00 last 39.90)
 - open/close 803 (time 1788212130.48 total 20.01 last 40.38)
 - open/close 1207 (time 1788212140.51 total 30.04 last 40.27)
 - open/close 1621 (time 1788212150.53 total 40.05 last 41.34)
 - open/close 2025 (time 1788212160.56 total 50.09 last 40.26)
 - open/close 2376 (time 1788212170.57 total 60.09 last 35.08)
 - open/close 2769 (time 1788212180.59 total 70.11 last 39.22)
 - open/close 3132 (time 1788212190.60 total 80.12 last 36.26)
 - open/close 3517 (time 1788212200.61 total 90.13 last 38.47)
 - open/close 3903 (time 1788212210.63 total 100.15 last 38.53)
 - open/close 4301 (time 1788212220.63 total 110.16 last 39.78)
 - open/close 4682 (time 1788212230.65 total 120.17 last 38.04)
total: 5000 open/close in 128.04 seconds: 39.05 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788212242 ; total 0 ; last 0)
total: 5000 unlinks in 87 seconds: 57.471264 unlinks/second
fail_loc=0