== sanity test 60c: unlink file when mds full ============ 17:36:02 (1788212162)
create 5000 files
 - open/close 538 (time 1788212176.77 total 10.00 last 53.80)
 - open/close 1027 (time 1788212186.77 total 20.00 last 48.89)
 - open/close 1562 (time 1788212196.77 total 30.01 last 53.47)
 - open/close 2090 (time 1788212206.79 total 40.02 last 52.72)
 - open/close 2572 (time 1788212216.81 total 50.05 last 48.07)
 - open/close 3027 (time 1788212226.81 total 60.05 last 45.50)
 - open/close 3513 (time 1788212236.81 total 70.05 last 48.60)
 - open/close 3995 (time 1788212246.83 total 80.06 last 48.15)
 - open/close 4464 (time 1788212256.83 total 90.07 last 46.86)
 - open/close 4938 (time 1788212266.84 total 100.07 last 47.39)
total: 5000 open/close in 101.26 seconds: 49.38 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788212272 ; total 0 ; last 0)
total: 5000 unlinks in 72 seconds: 69.444443 unlinks/second
fail_loc=0