== sanity test 60c: unlink file when mds full ============ 08:17:47 (1788869867)
create 5000 files
 - open/close 521 (time 1788869881.43 total 10.00 last 52.09)
 - open/close 1089 (time 1788869891.44 total 20.01 last 56.74)
 - open/close 1645 (time 1788869901.45 total 30.03 last 55.53)
 - open/close 2188 (time 1788869911.46 total 40.03 last 54.29)
 - open/close 2668 (time 1788869921.46 total 50.03 last 48.00)
 - open/close 3209 (time 1788869931.47 total 60.04 last 54.01)
 - open/close 3713 (time 1788869941.48 total 70.05 last 50.36)
 - open/close 4225 (time 1788869951.49 total 80.06 last 51.17)
 - open/close 4761 (time 1788869961.49 total 90.06 last 53.59)
total: 5000 open/close in 94.38 seconds: 52.98 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788869970 ; total 0 ; last 0)
total: 5000 unlinks in 83 seconds: 60.240963 unlinks/second
fail_loc=0