== sanity test 184c: Concurrent write and layout swap ==== 15:30:31 (1787599831) 54+0 records in 54+0 records out 56623104 bytes (57 MB, 54 MiB) copied, 9.59492 s, 5.9 MB/s 27+0 records in 27+0 records out 28311552 bytes (28 MB, 27 MiB) copied, 4.04308 s, 7.0 MB/s ref file size: ref1(56623104), ref2(28311552) 3456+0 records in 3456+0 records out 56623104 bytes (57 MB, 54 MiB) copied, 18.6048 s, 3.0 MB/s Copied 507904 bytes before swapping layout...