== sanity test 60c: unlink file when mds full ============ 17:19:21 (1777497561)
create 5000 files
 - open/close 492 (time 1777497575.76 total 10.01 last 49.16)
 - open/close 1003 (time 1777497585.78 total 20.02 last 51.03)
 - open/close 1519 (time 1777497595.79 total 30.03 last 51.53)
 - open/close 2006 (time 1777497605.80 total 40.05 last 48.64)
 - open/close 2645 (time 1777497615.81 total 50.05 last 63.87)
 - open/close 3224 (time 1777497625.81 total 60.06 last 57.87)
 - open/close 3757 (time 1777497635.82 total 70.07 last 53.23)
 - open/close 4267 (time 1777497645.84 total 80.09 last 50.89)
 - open/close 4745 (time 1777497655.87 total 90.11 last 47.69)
total: 5000 open/close in 96.10 seconds: 52.03 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1777497666 ; total 0 ; last 0)
total: 5000 unlinks in 69 seconds: 72.463768 unlinks/second
fail_loc=0