== sanity test 60c: unlink file when mds full ============ 21:42:09 (1789263729)
create 5000 files
 - open/close 1563 (time 1789263740.90 total 10.00 last 156.28)
 - open/close 3284 (time 1789263750.90 total 20.00 last 172.08)
 - open/close 4857 (time 1789263760.90 total 30.00 last 157.27)
total: 5000 open/close in 30.90 seconds: 161.79 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789263763 ; total 0 ; last 0)
total: 5000 unlinks in 20 seconds: 250.000000 unlinks/second
fail_loc=0