== sanity test 184c: Concurrent write and layout swap ==== 16:03:36 (1776197016) 25+0 records in 25+0 records out 26214400 bytes (26 MB, 25 MiB) copied, 1.23571 s, 21.2 MB/s 30+0 records in 30+0 records out 31457280 bytes (31 MB, 30 MiB) copied, 0.825802 s, 38.1 MB/s ref file size: ref1(26214400), ref2(31457280) 1600+0 records in 1600+0 records out 26214400 bytes (26 MB, 25 MiB) copied, 2.09558 s, 12.5 MB/s Copied 2424832 bytes before swapping layout...