== sanity test 60c: unlink file when mds full ============ 05:15:09 (1778922909)
create 5000 files
 - open/close 517 (time 1778922922.73 total 10.01 last 51.66)
 - open/close 1008 (time 1778922932.74 total 20.01 last 49.09)
 - open/close 1461 (time 1778922942.74 total 30.02 last 45.26)
 - open/close 1896 (time 1778922952.75 total 40.02 last 43.48)
 - open/close 2376 (time 1778922962.77 total 50.05 last 47.88)
 - open/close 2861 (time 1778922972.81 total 60.08 last 48.34)
 - open/close 3356 (time 1778922982.83 total 70.10 last 49.38)
 - open/close 3823 (time 1778922992.85 total 80.13 last 46.59)
 - open/close 4311 (time 1778923002.89 total 90.16 last 48.64)
 - open/close 4759 (time 1778923012.89 total 100.16 last 44.79)
total: 5000 open/close in 105.63 seconds: 47.34 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1778923024 ; total 1 ; last 1)
total: 5000 unlinks in 80 seconds: 62.500000 unlinks/second
fail_loc=0