== sanity test 184c: Concurrent write and layout swap ==== 15:20:37 (1772310037) 41+0 records in 41+0 records out 42991616 bytes (43 MB, 41 MiB) copied, 0.678491 s, 63.4 MB/s 49+0 records in 49+0 records out 51380224 bytes (51 MB, 49 MiB) copied, 0.753715 s, 68.2 MB/s ref file size: ref1(42991616), ref2(51380224) 2624+0 records in 2624+0 records out 42991616 bytes (43 MB, 41 MiB) copied, 0.776614 s, 55.4 MB/s Copied 6930432 bytes before swapping layout...