== sanity test 184c: Concurrent write and layout swap ==== 14:33:46 (1785782026) 33+0 records in 33+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 6.69899 s, 5.2 MB/s 39+0 records in 39+0 records out 40894464 bytes (41 MB, 39 MiB) copied, 10.653 s, 3.8 MB/s ref file size: ref1(34603008), ref2(40894464) 2112+0 records in 2112+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 13.7402 s, 2.5 MB/s Copied 507904 bytes before swapping layout...