== sanity test 60c: unlink file when mds full ============ 13:55:10 (1788198910)
create 5000 files
 - open/close 493 (time 1788198924.25 total 10.00 last 49.29)
 - open/close 967 (time 1788198934.26 total 20.01 last 47.38)
 - open/close 1504 (time 1788198944.27 total 30.02 last 53.64)
 - open/close 2026 (time 1788198954.27 total 40.02 last 52.19)
 - open/close 2569 (time 1788198964.28 total 50.03 last 54.24)
 - open/close 3120 (time 1788198974.29 total 60.04 last 55.06)
 - open/close 3638 (time 1788198984.30 total 70.05 last 51.74)
 - open/close 4191 (time 1788198994.32 total 80.07 last 55.21)
 - open/close 4722 (time 1788199004.33 total 90.08 last 53.03)
total: 5000 open/close in 95.62 seconds: 52.29 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788199013 ; total 0 ; last 0)
total: 5000 unlinks in 65 seconds: 76.923080 unlinks/second
fail_loc=0