== sanity test 184c: Concurrent write and layout swap ==== 12:44:14 (1761324254) 29+0 records in 29+0 records out 30408704 bytes (30 MB, 29 MiB) copied, 0.531337 s, 57.2 MB/s 51+0 records in 51+0 records out 53477376 bytes (53 MB, 51 MiB) copied, 0.988659 s, 54.1 MB/s ref file size: ref1(30408704), ref2(53477376) 1856+0 records in 1856+0 records out 30408704 bytes (30 MB, 29 MiB) copied, 0.607905 s, 50.0 MB/s Copied 6144000 bytes before swapping layout...