== sanity test 60c: unlink file when mds full ============ 22:51:58 (1790736718)
create 5000 files
 - open/close 569 (time 1790736732.89 total 10.01 last 56.84)
 - open/close 1171 (time 1790736742.89 total 20.02 last 60.16)
 - open/close 1775 (time 1790736752.90 total 30.03 last 60.33)
 - open/close 2296 (time 1790736762.92 total 40.04 last 52.03)
 - open/close 2870 (time 1790736772.92 total 50.05 last 57.38)
 - open/close 3407 (time 1790736782.93 total 60.05 last 53.67)
 - open/close 3975 (time 1790736792.94 total 70.07 last 56.69)
 - open/close 4534 (time 1790736802.96 total 80.08 last 55.84)
total: 5000 open/close in 88.22 seconds: 56.67 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1790736814 ; total 0 ; last 0)
total: 5000 unlinks in 60 seconds: 83.333336 unlinks/second
fail_loc=0