== sanity test 60c: unlink file when mds full ============ 05:31:06 (1773653466)
create 5000 files
 - open/close 419 (time 1773653480.91 total 10.03 last 41.79)
 - open/close 864 (time 1773653490.93 total 20.04 last 44.43)
 - open/close 1252 (time 1773653500.94 total 30.06 last 38.74)
 - open/close 1676 (time 1773653510.97 total 40.08 last 42.30)
 - open/close 2105 (time 1773653520.97 total 50.08 last 42.89)
 - open/close 2596 (time 1773653530.98 total 60.09 last 49.06)
 - open/close 3120 (time 1773653541.00 total 70.11 last 52.26)
 - open/close 3600 (time 1773653551.02 total 80.13 last 47.92)
 - open/close 4089 (time 1773653561.02 total 90.13 last 48.89)
 - open/close 4572 (time 1773653571.03 total 100.14 last 48.26)
total: 5000 open/close in 109.87 seconds: 45.51 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1773653585 ; total 0 ; last 0)
total: 5000 unlinks in 89 seconds: 56.179775 unlinks/second
fail_loc=0