== sanity test 239A: osp_sync test ======================= 22:16:29 (1713492989)
 - open/close 2458 (time 1713493000.37 total 10.00 last 245.76)
 - open/close 4916 (time 1713493010.37 total 20.00 last 245.80)
total: 5000 open/close in 20.33 seconds: 245.96 ops/second
 - unlinked 0 (time 1713493012 ; total 0 ; last 0)
total: 5000 unlinks in 11 seconds: 454.545441 unlinks/second