== sanity test 184c: Concurrent write and layout swap ==== 14:34:50 (1788546890) 25+0 records in 25+0 records out 26214400 bytes (26 MB, 25 MiB) copied, 4.23008 s, 6.2 MB/s 26+0 records in 26+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 3.3487 s, 8.1 MB/s ref file size: ref1(26214400), ref2(27262976) 1600+0 records in 1600+0 records out 26214400 bytes (26 MB, 25 MiB) copied, 12.5701 s, 2.1 MB/s Copied 409600 bytes before swapping layout...