== sanity test 60c: unlink file when mds full ============ 22:20:13 (1789266013)
create 5000 files
 - open/close 485 (time 1789266028.42 total 10.00 last 48.48)
 - open/close 972 (time 1789266038.42 total 20.01 last 48.69)
 - open/close 1466 (time 1789266048.42 total 30.01 last 49.39)
 - open/close 1973 (time 1789266058.45 total 40.04 last 50.56)
 - open/close 2498 (time 1789266068.47 total 50.06 last 52.37)
 - open/close 3035 (time 1789266078.51 total 60.10 last 53.51)
 - open/close 3520 (time 1789266088.52 total 70.10 last 48.47)
 - open/close 3990 (time 1789266098.52 total 80.11 last 46.96)
 - open/close 4470 (time 1789266108.54 total 90.13 last 47.92)
 - open/close 4917 (time 1789266118.55 total 100.14 last 44.63)
total: 5000 open/close in 101.73 seconds: 49.15 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789266124 ; total 0 ; last 0)
total: 5000 unlinks in 68 seconds: 73.529411 unlinks/second
fail_loc=0