== sanity test 60c: unlink file when mds full ============ 10:52:47 (1790952767)
create 5000 files
 - open/close 686 (time 1790952780.84 total 10.02 last 68.49)
 - open/close 1298 (time 1790952790.86 total 20.03 last 61.11)
 - open/close 1844 (time 1790952800.86 total 30.04 last 54.56)
 - open/close 2410 (time 1790952810.88 total 40.05 last 56.52)
 - open/close 2993 (time 1790952820.89 total 50.06 last 58.24)
 - open/close 3568 (time 1790952830.91 total 60.08 last 57.41)
 - open/close 4105 (time 1790952840.92 total 70.09 last 53.64)
 - open/close 4652 (time 1790952850.93 total 80.11 last 54.61)
total: 5000 open/close in 86.18 seconds: 58.02 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1790952862 ; total 0 ; last 0)
total: 5000 unlinks in 68 seconds: 73.529411 unlinks/second
fail_loc=0