== sanity test 60c: unlink file when mds full ============ 22:00:24 (1788746424)
create 5000 files
 - open/close 553 (time 1788746438.45 total 10.01 last 55.26)
 - open/close 1114 (time 1788746448.45 total 20.01 last 56.10)
 - open/close 1727 (time 1788746458.46 total 30.02 last 61.23)
 - open/close 2305 (time 1788746468.47 total 40.03 last 57.75)
 - open/close 2920 (time 1788746478.51 total 50.07 last 61.21)
 - open/close 3447 (time 1788746488.52 total 60.08 last 52.68)
 - open/close 4000 (time 1788746498.53 total 70.09 last 55.22)
 - open/close 4595 (time 1788746508.54 total 80.10 last 59.47)
total: 5000 open/close in 86.74 seconds: 57.64 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788746519 ; total 0 ; last 0)
total: 5000 unlinks in 64 seconds: 78.125000 unlinks/second
fail_loc=0