== sanity test 60c: unlink file when mds full ============ 12:08:01 (1788797281)
create 5000 files
 - open/close 526 (time 1788797295.65 total 10.02 last 52.50)
 - open/close 1112 (time 1788797305.66 total 20.02 last 58.57)
 - open/close 1688 (time 1788797315.67 total 30.04 last 57.51)
 - open/close 2296 (time 1788797325.71 total 40.08 last 60.58)
 - open/close 2903 (time 1788797335.71 total 50.08 last 60.67)
 - open/close 3414 (time 1788797345.72 total 60.09 last 51.04)
 - open/close 3934 (time 1788797355.75 total 70.11 last 51.88)
 - open/close 4480 (time 1788797365.79 total 80.15 last 54.39)
total: 5000 open/close in 90.07 seconds: 55.51 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788797380 ; total 0 ; last 0)
total: 5000 unlinks in 74 seconds: 67.567566 unlinks/second
fail_loc=0