== sanity test 184c: Concurrent write and layout swap ==== 19:17:23 (1778541443) 41+0 records in 41+0 records out 42991616 bytes (43 MB, 41 MiB) copied, 0.590014 s, 72.9 MB/s 38+0 records in 38+0 records out 39845888 bytes (40 MB, 38 MiB) copied, 0.58458 s, 68.2 MB/s ref file size: ref1(42991616), ref2(39845888) 2624+0 records in 2624+0 records out 42991616 bytes (43 MB, 41 MiB) copied, 0.652148 s, 65.9 MB/s Copied 8306688 bytes before swapping layout...