== sanity test 184c: Concurrent write and layout swap ==== 10:57:32 (1759849052) 38+0 records in 38+0 records out 39845888 bytes (40 MB, 38 MiB) copied, 0.708091 s, 56.3 MB/s 33+0 records in 33+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 0.58519 s, 59.1 MB/s ref file size: ref1(39845888), ref2(34603008) 2432+0 records in 2432+0 records out 39845888 bytes (40 MB, 38 MiB) copied, 0.761702 s, 52.3 MB/s Copied 5570560 bytes before swapping layout...