== sanity test 60c: unlink file when mds full ============ 17:43:55 (1784756635)
create 5000 files
 - open/close 598 (time 1784756650.59 total 10.01 last 59.75)
 - open/close 1262 (time 1784756660.59 total 20.01 last 66.38)
 - open/close 1853 (time 1784756670.60 total 30.02 last 59.06)
 - open/close 2361 (time 1784756680.60 total 40.02 last 50.80)
 - open/close 2935 (time 1784756690.60 total 50.03 last 57.36)
 - open/close 3553 (time 1784756700.63 total 60.05 last 61.65)
 - open/close 4105 (time 1784756710.65 total 70.07 last 55.09)
 - open/close 4714 (time 1784756720.66 total 80.08 last 60.85)
total: 5000 open/close in 84.51 seconds: 59.17 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1784756729 ; total 0 ; last 0)
total: 5000 unlinks in 54 seconds: 92.592590 unlinks/second
fail_loc=0