== sanity test 60c: unlink file when mds full ============ 14:10:12 (1780337412)
create 5000 files
 - open/close 511 (time 1780337426.48 total 10.02 last 51.01)
 - open/close 1003 (time 1780337436.48 total 20.02 last 49.19)
 - open/close 1614 (time 1780337446.49 total 30.03 last 61.06)
 - open/close 2103 (time 1780337456.50 total 40.04 last 48.83)
 - open/close 2602 (time 1780337466.54 total 50.08 last 49.70)
 - open/close 3022 (time 1780337476.55 total 60.08 last 41.99)
 - open/close 3564 (time 1780337486.55 total 70.08 last 54.19)
 - open/close 4015 (time 1780337496.58 total 80.11 last 44.97)
 - open/close 4461 (time 1780337506.59 total 90.12 last 44.56)
 - open/close 4895 (time 1780337516.59 total 100.12 last 43.40)
total: 5000 open/close in 102.17 seconds: 48.94 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1780337523 ; total 0 ; last 0)
total: 5000 unlinks in 64 seconds: 78.125000 unlinks/second
fail_loc=0