== sanity test 60c: unlink file when mds full ============ 22:31:31 (1739503891)
create 5000 files
 - open/close 1016 (time 1739503904.00 total 10.00 last 101.56)
 - open/close 2040 (time 1739503914.00 total 20.01 last 102.34)
 - open/close 3078 (time 1739503924.01 total 30.02 last 103.72)
 - open/close 4129 (time 1739503934.02 total 40.02 last 105.03)
total: 5000 open/close in 48.26 seconds: 103.62 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1739503944 ; total 0 ; last 0)
total: 5000 unlinks in 41 seconds: 121.951218 unlinks/second
fail_loc=0