== sanity test 60c: unlink file when mds full ============ 15:25:47 (1788463547)
create 5000 files
 - open/close 576 (time 1788463562.79 total 10.00 last 57.60)
 - open/close 1099 (time 1788463572.80 total 20.00 last 52.28)
 - open/close 1776 (time 1788463582.80 total 30.01 last 67.67)
 - open/close 2416 (time 1788463592.80 total 40.01 last 63.98)
 - open/close 3020 (time 1788463602.82 total 50.03 last 60.31)
 - open/close 3533 (time 1788463612.83 total 60.04 last 51.22)
 - open/close 4084 (time 1788463622.86 total 70.06 last 54.97)
 - open/close 4598 (time 1788463632.88 total 80.09 last 51.29)
total: 5000 open/close in 87.17 seconds: 57.36 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788463644 ; total 0 ; last 0)
total: 5000 unlinks in 61 seconds: 81.967216 unlinks/second
fail_loc=0