== sanity test 60c: unlink file when mds full ============ 23:28:34 (1783135714)
create 5000 files
 - open/close 421 (time 1783135729.77 total 10.03 last 41.95)
 - open/close 921 (time 1783135739.78 total 20.04 last 49.95)
 - open/close 1390 (time 1783135749.80 total 30.07 last 46.79)
 - open/close 1904 (time 1783135759.80 total 40.07 last 51.39)
 - open/close 2417 (time 1783135769.81 total 50.08 last 51.25)
 - open/close 2774 (time 1783135779.84 total 60.11 last 35.59)
 - open/close 3273 (time 1783135789.85 total 70.12 last 49.87)
 - open/close 3761 (time 1783135799.86 total 80.13 last 48.76)
 - open/close 4185 (time 1783135809.88 total 90.15 last 42.31)
 - open/close 4697 (time 1783135819.90 total 100.17 last 51.08)
total: 5000 open/close in 104.75 seconds: 47.73 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1783135829 ; total 1 ; last 1)
total: 5000 unlinks in 66 seconds: 75.757576 unlinks/second
fail_loc=0