== sanity test 184c: Concurrent write and layout swap ==== 02:53:53 (1782370433) 26+0 records in 26+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 1.29736 s, 21.0 MB/s 27+0 records in 27+0 records out 28311552 bytes (28 MB, 27 MiB) copied, 1.34962 s, 21.0 MB/s ref file size: ref1(27262976), ref2(28311552) 1664+0 records in 1664+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 2.71437 s, 10.0 MB/s Copied 1409024 bytes before swapping layout...