== sanity test 60c: unlink file when mds full ============ 09:59:39 (1789048779)
create 5000 files
 - open/close 647 (time 1789048793.09 total 10.00 last 64.68)
 - open/close 1300 (time 1789048803.11 total 20.03 last 65.16)
 - open/close 1964 (time 1789048813.12 total 30.03 last 66.34)
 - open/close 2590 (time 1789048823.14 total 40.05 last 62.49)
 - open/close 3243 (time 1789048833.14 total 50.06 last 65.27)
 - open/close 3850 (time 1789048843.16 total 60.07 last 60.62)
 - open/close 4245 (time 1789048853.17 total 70.08 last 39.45)
 - open/close 4731 (time 1789048863.19 total 80.10 last 48.50)
total: 5000 open/close in 84.77 seconds: 58.98 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789048871 ; total 0 ; last 0)
total: 5000 unlinks in 54 seconds: 92.592590 unlinks/second
fail_loc=0