== sanity test 60c: unlink file when mds full ============ 15:24:31 (1778613871)
create 5000 files
 - open/close 550 (time 1778613886.33 total 10.00 last 54.98)
 - open/close 1157 (time 1778613896.34 total 20.01 last 60.66)
 - open/close 1726 (time 1778613906.37 total 30.04 last 56.74)
 - open/close 2336 (time 1778613916.37 total 40.04 last 60.96)
 - open/close 2875 (time 1778613926.39 total 50.07 last 53.78)
 - open/close 3422 (time 1778613936.41 total 60.08 last 54.61)
 - open/close 4109 (time 1778613946.41 total 70.09 last 68.69)
 - open/close 4782 (time 1778613956.42 total 80.09 last 67.25)
total: 5000 open/close in 82.92 seconds: 60.30 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1778613963 ; total 0 ; last 0)
total: 5000 unlinks in 64 seconds: 78.125000 unlinks/second
fail_loc=0