== sanity test 60c: unlink file when mds full ============ 10:54:57 (1776178497)
create 5000 files
 - open/close 614 (time 1776178512.50 total 10.00 last 61.38)
 - open/close 1252 (time 1776178522.51 total 20.01 last 63.76)
 - open/close 1937 (time 1776178532.51 total 30.01 last 68.49)
 - open/close 2700 (time 1776178542.52 total 40.02 last 76.22)
 - open/close 3427 (time 1776178552.52 total 50.02 last 72.69)
 - open/close 4165 (time 1776178562.52 total 60.02 last 73.78)
 - open/close 4812 (time 1776178572.53 total 70.03 last 64.67)
total: 5000 open/close in 74.13 seconds: 67.45 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1776178583 ; total 0 ; last 0)
total: 5000 unlinks in 51 seconds: 98.039215 unlinks/second
fail_loc=0