== sanity test 60c: unlink file when mds full ============ 21:52:08 (1781229128)
create 5000 files
 - open/close 1281 (time 1781229140.08 total 10.00 last 128.05)
 - open/close 2360 (time 1781229150.09 total 20.01 last 107.85)
 - open/close 3422 (time 1781229160.09 total 30.01 last 106.15)
 - open/close 4560 (time 1781229170.09 total 40.02 last 113.77)
total: 5000 open/close in 42.99 seconds: 116.32 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1781229174 ; total 0 ; last 0)
total: 5000 unlinks in 33 seconds: 151.515152 unlinks/second
fail_loc=0