== sanity test 60c: unlink file when mds full ============ 20:58:36 (1782608316)
create 5000 files
 - open/close 350 (time 1782608331.89 total 10.02 last 34.94)
 - open/close 706 (time 1782608341.91 total 20.04 last 35.53)
 - open/close 1111 (time 1782608351.94 total 30.06 last 40.40)
 - open/close 1536 (time 1782608361.94 total 40.06 last 42.50)
 - open/close 1969 (time 1782608371.96 total 50.08 last 43.23)
 - open/close 2378 (time 1782608381.96 total 60.08 last 40.88)
 - open/close 2798 (time 1782608392.00 total 70.12 last 41.84)
 - open/close 3214 (time 1782608402.01 total 80.13 last 41.56)
 - open/close 3550 (time 1782608412.02 total 90.15 last 33.55)
 - open/close 3931 (time 1782608422.03 total 100.15 last 38.09)
 - open/close 4310 (time 1782608432.03 total 110.16 last 37.87)
 - open/close 4635 (time 1782608442.05 total 120.18 last 32.44)
 - open/close 4968 (time 1782608452.06 total 130.19 last 33.27)
total: 5000 open/close in 130.94 seconds: 38.18 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1782608458 ; total 0 ; last 0)
total: 5000 unlinks in 102 seconds: 49.019608 unlinks/second
fail_loc=0