== sanity test 60c: unlink file when mds full ============ 12:23:56 (1783441436)
create 5000 files
 - open/close 499 (time 1783441450.71 total 10.00 last 49.88)
 - open/close 951 (time 1783441460.72 total 20.02 last 45.13)
 - open/close 1427 (time 1783441470.73 total 30.03 last 47.54)
 - open/close 1913 (time 1783441480.78 total 40.08 last 48.38)
 - open/close 2351 (time 1783441490.80 total 50.09 last 43.72)
 - open/close 2821 (time 1783441500.81 total 60.11 last 46.94)
 - open/close 3265 (time 1783441510.82 total 70.12 last 44.35)
 - open/close 3774 (time 1783441520.83 total 80.13 last 50.84)
 - open/close 4214 (time 1783441530.88 total 90.18 last 43.78)
 - open/close 4657 (time 1783441540.90 total 100.19 last 44.24)
total: 5000 open/close in 106.95 seconds: 46.75 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1783441552 ; total 0 ; last 0)
total: 5000 unlinks in 69 seconds: 72.463768 unlinks/second
fail_loc=0