== sanity test 60c: unlink file when mds full ============ 12:08:51 (1788797331)
create 5000 files
 - open/close 512 (time 1788797345.61 total 10.00 last 51.20)
 - open/close 1051 (time 1788797355.62 total 20.00 last 53.88)
 - open/close 1539 (time 1788797365.63 total 30.02 last 48.72)
 - open/close 2057 (time 1788797375.64 total 40.03 last 51.73)
 - open/close 2573 (time 1788797385.67 total 50.06 last 51.46)
 - open/close 2970 (time 1788797395.68 total 60.07 last 39.68)
 - open/close 3401 (time 1788797405.69 total 70.07 last 43.07)
 - open/close 3800 (time 1788797415.71 total 80.10 last 39.80)
 - open/close 4242 (time 1788797425.72 total 90.11 last 44.16)
 - open/close 4633 (time 1788797435.72 total 100.11 last 39.08)
total: 5000 open/close in 109.54 seconds: 45.64 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788797450 ; total 0 ; last 0)
total: 5000 unlinks in 79 seconds: 63.291138 unlinks/second
fail_loc=0