== sanity test 60c: unlink file when mds full ============ 19:11:22 (1788563482)
create 5000 files
 - open/close 610 (time 1788563497.04 total 10.02 last 60.88)
 - open/close 1255 (time 1788563507.04 total 20.03 last 64.47)
 - open/close 1951 (time 1788563517.05 total 30.03 last 69.57)
 - open/close 2571 (time 1788563527.05 total 40.03 last 61.99)
 - open/close 3184 (time 1788563537.06 total 50.04 last 61.25)
 - open/close 3757 (time 1788563547.06 total 60.05 last 57.27)
 - open/close 4265 (time 1788563557.07 total 70.06 last 50.74)
 - open/close 4833 (time 1788563567.08 total 80.07 last 56.75)
total: 5000 open/close in 83.47 seconds: 59.90 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788563575 ; total 0 ; last 0)
total: 5000 unlinks in 57 seconds: 87.719299 unlinks/second
fail_loc=0