== sanity test 60c: unlink file when mds full ============ 01:29:15 (1790918955)
create 5000 files
 - open/close 546 (time 1790918969.84 total 10.01 last 54.52)
 - open/close 1047 (time 1790918979.85 total 20.02 last 50.09)
 - open/close 1574 (time 1790918989.87 total 30.04 last 52.58)
 - open/close 2094 (time 1790918999.89 total 40.06 last 51.89)
 - open/close 2643 (time 1790919009.90 total 50.07 last 54.86)
 - open/close 3139 (time 1790919019.92 total 60.09 last 49.50)
 - open/close 3624 (time 1790919029.92 total 70.09 last 48.49)
 - open/close 4139 (time 1790919039.93 total 80.10 last 51.45)
 - open/close 4628 (time 1790919049.93 total 90.11 last 48.87)
total: 5000 open/close in 97.53 seconds: 51.27 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1790919061 ; total 0 ; last 0)
total: 5000 unlinks in 72 seconds: 69.444443 unlinks/second
fail_loc=0