== sanity test 60c: unlink file when mds full ============ 19:08:10 (1781046490)
create 5000 files
 - open/close 1384 (time 1781046502.63 total 10.00 last 138.36)
 - open/close 2677 (time 1781046512.63 total 20.01 last 129.26)
 - open/close 4313 (time 1781046522.64 total 30.01 last 163.56)
total: 5000 open/close in 33.71 seconds: 148.31 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1781046528 ; total 0 ; last 0)
total: 5000 unlinks in 15 seconds: 333.333344 unlinks/second
fail_loc=0