== sanity test 60c: unlink file when mds full ============ 05:12:30 (1788513150)
create 5000 files
 - open/close 397 (time 1788513166.00 total 10.00 last 39.68)
 - open/close 894 (time 1788513176.01 total 20.02 last 49.65)
 - open/close 1459 (time 1788513186.03 total 30.03 last 56.39)
 - open/close 1992 (time 1788513196.04 total 40.05 last 53.22)
 - open/close 2502 (time 1788513206.06 total 50.07 last 50.91)
 - open/close 3010 (time 1788513216.06 total 60.07 last 50.80)
 - open/close 3496 (time 1788513226.06 total 70.07 last 48.59)
 - open/close 3942 (time 1788513236.07 total 80.08 last 44.54)
 - open/close 4391 (time 1788513246.09 total 90.10 last 44.84)
 - open/close 4887 (time 1788513256.10 total 100.10 last 49.56)
total: 5000 open/close in 102.34 seconds: 48.86 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788513262 ; total 0 ; last 0)
total: 5000 unlinks in 80 seconds: 62.500000 unlinks/second
fail_loc=0