== sanity test 184c: Concurrent write and layout swap ==== 08:41:05 (1777034465) 56+0 records in 56+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 2.8716 s, 20.4 MB/s 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 2.07028 s, 20.3 MB/s ref file size: ref1(58720256), ref2(41943040) 3584+0 records in 3584+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 5.4055 s, 10.9 MB/s Copied 1523712 bytes before swapping layout...