== sanity test 60c: unlink file when mds full ============ 00:22:35 (1788841355)
create 5000 files
 - open/close 619 (time 1788841370.87 total 10.02 last 61.75)
 - open/close 1124 (time 1788841380.87 total 20.02 last 50.50)
 - open/close 1513 (time 1788841390.89 total 30.05 last 38.82)
 - open/close 1877 (time 1788841400.91 total 40.06 last 36.35)
 - open/close 2378 (time 1788841410.92 total 50.07 last 50.03)
 - open/close 2950 (time 1788841420.93 total 60.09 last 57.12)
 - open/close 3527 (time 1788841430.95 total 70.10 last 57.63)
 - open/close 4108 (time 1788841440.95 total 80.10 last 58.09)
 - open/close 4662 (time 1788841450.95 total 90.10 last 55.38)
total: 5000 open/close in 96.44 seconds: 51.85 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788841462 ; total 0 ; last 0)
total: 5000 unlinks in 71 seconds: 70.422539 unlinks/second
fail_loc=0