== sanity test 60c: unlink file when mds full ============ 05:06:24 (1768298784)
create 5000 files
 - open/close 395 (time 1768298799.55 total 10.02 last 39.42)
 - open/close 798 (time 1768298809.56 total 20.02 last 40.29)
 - open/close 1239 (time 1768298819.56 total 30.03 last 44.07)
 - open/close 1783 (time 1768298829.57 total 40.04 last 54.36)
 - open/close 2298 (time 1768298839.58 total 50.05 last 51.44)
 - open/close 2975 (time 1768298849.59 total 60.06 last 67.65)
 - open/close 3507 (time 1768298859.59 total 70.06 last 53.19)
 - open/close 4027 (time 1768298869.60 total 80.07 last 51.94)
 - open/close 4514 (time 1768298879.61 total 90.08 last 48.67)
 - open/close 4984 (time 1768298889.63 total 100.09 last 46.92)
total: 5000 open/close in 100.38 seconds: 49.81 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1768298894 ; total 0 ; last 0)
total: 5000 unlinks in 68 seconds: 73.529411 unlinks/second
fail_loc=0