== sanity test 60c: unlink file when mds full ============ 08:47:41 (1789130861)
create 5000 files
 - open/close 391 (time 1789130875.86 total 10.01 last 39.05)
 - open/close 821 (time 1789130885.87 total 20.02 last 42.97)
 - open/close 1312 (time 1789130895.87 total 30.02 last 49.09)
 - open/close 1887 (time 1789130905.88 total 40.03 last 57.43)
 - open/close 2400 (time 1789130915.89 total 50.04 last 51.27)
 - open/close 2793 (time 1789130925.90 total 60.05 last 39.24)
 - open/close 3272 (time 1789130935.91 total 70.06 last 47.85)
 - open/close 3731 (time 1789130945.91 total 80.06 last 45.89)
 - open/close 4235 (time 1789130955.93 total 90.08 last 50.32)
 - open/close 4713 (time 1789130965.93 total 100.08 last 47.79)
total: 5000 open/close in 105.12 seconds: 47.56 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789130974 ; total 0 ; last 0)
total: 5000 unlinks in 64 seconds: 78.125000 unlinks/second
fail_loc=0