== sanity test 60c: unlink file when mds full ============ 08:49:15 (1783946955)
create 5000 files
 - open/close 718 (time 1783946970.40 total 10.03 last 71.56)
 - open/close 1359 (time 1783946980.42 total 20.05 last 63.99)
 - open/close 1913 (time 1783946990.43 total 30.06 last 55.35)
 - open/close 2491 (time 1783947000.43 total 40.06 last 57.78)
 - open/close 3178 (time 1783947010.43 total 50.06 last 68.70)
 - open/close 3806 (time 1783947020.47 total 60.09 last 62.61)
 - open/close 4355 (time 1783947030.48 total 70.11 last 54.79)
total: 5000 open/close in 79.30 seconds: 63.05 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1783947043 ; total 0 ; last 0)
total: 5000 unlinks in 53 seconds: 94.339622 unlinks/second
fail_loc=0