== sanity test 184c: Concurrent write and layout swap ==== 14:26:11 (1787336771) 33+0 records in 33+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 5.71698 s, 6.1 MB/s 34+0 records in 34+0 records out 35651584 bytes (36 MB, 34 MiB) copied, 5.87543 s, 6.1 MB/s ref file size: ref1(34603008), ref2(35651584) 2112+0 records in 2112+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 10.6562 s, 3.2 MB/s Copied 344064 bytes before swapping layout...