== sanity test 60c: unlink file when mds full ============ 21:23:50 (1788830630)
create 5000 files
 - open/close 731 (time 1788830643.68 total 10.00 last 73.08)
 - open/close 1489 (time 1788830653.69 total 20.01 last 75.74)
 - open/close 2256 (time 1788830663.69 total 30.02 last 76.64)
 - open/close 2941 (time 1788830673.70 total 40.03 last 68.45)
 - open/close 3532 (time 1788830683.71 total 50.03 last 59.07)
 - open/close 4078 (time 1788830693.72 total 60.05 last 54.51)
 - open/close 4709 (time 1788830703.72 total 70.05 last 63.09)
total: 5000 open/close in 74.19 seconds: 67.40 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788830711 ; total 0 ; last 0)
total: 5000 unlinks in 49 seconds: 102.040817 unlinks/second
fail_loc=0