== sanity test 60c: unlink file when mds full ============ 16:37:16 (1788813436)
create 5000 files
 - open/close 533 (time 1788813451.10 total 10.03 last 53.16)
 - open/close 1014 (time 1788813461.11 total 20.04 last 48.06)
 - open/close 1525 (time 1788813471.13 total 30.06 last 50.99)
 - open/close 2008 (time 1788813481.14 total 40.06 last 48.26)
 - open/close 2469 (time 1788813491.14 total 50.07 last 46.07)
 - open/close 2970 (time 1788813501.15 total 60.08 last 50.05)
 - open/close 3389 (time 1788813511.16 total 70.08 last 41.89)
 - open/close 3772 (time 1788813521.16 total 80.09 last 38.29)
 - open/close 4182 (time 1788813531.17 total 90.10 last 40.95)
 - open/close 4622 (time 1788813541.19 total 100.12 last 43.92)
 - open/close 4983 (time 1788813551.20 total 110.13 last 36.06)
total: 5000 open/close in 110.43 seconds: 45.28 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788813556 ; total 0 ; last 0)
total: 5000 unlinks in 76 seconds: 65.789474 unlinks/second
fail_loc=0