== sanity test 60c: unlink file when mds full ============ 22:17:26 (1788833846)
create 5000 files
 - open/close 620 (time 1788833860.60 total 10.01 last 61.92)
 - open/close 1231 (time 1788833870.62 total 20.02 last 61.03)
 - open/close 1924 (time 1788833880.62 total 30.03 last 69.25)
 - open/close 2512 (time 1788833890.65 total 40.06 last 58.64)
 - open/close 3155 (time 1788833900.67 total 50.08 last 64.18)
 - open/close 3752 (time 1788833910.68 total 60.09 last 59.62)
 - open/close 4318 (time 1788833920.71 total 70.12 last 56.44)
 - open/close 4817 (time 1788833930.73 total 80.14 last 49.79)
total: 5000 open/close in 82.71 seconds: 60.45 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788833938 ; total 0 ; last 0)
total: 5000 unlinks in 64 seconds: 78.125000 unlinks/second
fail_loc=0