== sanity test 60c: unlink file when mds full ============ 17:09:17 (1785964157)
create 5000 files
 - open/close 617 (time 1785964170.90 total 10.01 last 61.63)
 - open/close 1214 (time 1785964180.90 total 20.01 last 59.70)
 - open/close 1813 (time 1785964190.90 total 30.01 last 59.89)
 - open/close 2434 (time 1785964200.91 total 40.02 last 62.05)
 - open/close 3006 (time 1785964210.92 total 50.03 last 57.15)
 - open/close 3611 (time 1785964220.92 total 60.03 last 60.49)
 - open/close 4225 (time 1785964230.93 total 70.05 last 61.32)
 - open/close 4846 (time 1785964240.94 total 80.05 last 62.07)
total: 5000 open/close in 82.08 seconds: 60.92 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1785964246 ; total 0 ; last 0)
total: 5000 unlinks in 61 seconds: 81.967216 unlinks/second
fail_loc=0