== sanity test 56Aa: lfs find --size under striped dir === 12:48:15 (1786034895)
 - open/close 375 (time 1786034912.57 total 10.01 last 37.46)
 - open/close 808 (time 1786034922.59 total 20.03 last 43.23)
total: 1024 open/close in 24.72 seconds: 41.43 ops/second