== sanity test 184c: Concurrent write and layout swap ==== 06:51:54 (1734436314) 68+0 records in 68+0 records out 71303168 bytes (71 MB) copied, 2.17591 s, 32.8 MB/s 39+0 records in 39+0 records out 40894464 bytes (41 MB) copied, 1.23422 s, 33.1 MB/s ref file size: ref1(71303168), ref2(40894464) 4352+0 records in 4352+0 records out 71303168 bytes (71 MB) copied, 4.26984 s, 16.7 MB/s Copied 1900544 bytes before swapping layout...