== sanity test 184c: Concurrent write and layout swap ==== 15:38:32 (1709066312) 39+0 records in 39+0 records out 40894464 bytes (41 MB) copied, 1.82465 s, 22.4 MB/s 52+0 records in 52+0 records out 54525952 bytes (55 MB) copied, 2.45128 s, 22.2 MB/s ref file size: ref1(40894464), ref2(54525952) 2496+0 records in 2496+0 records out 40894464 bytes (41 MB) copied, 5.04161 s, 8.1 MB/s Copied 1146880 bytes before swapping layout...