== sanity test 184c: Concurrent write and layout swap ==== 11:04:38 (1789139078) 25+0 records in 25+0 records out 26214400 bytes (26 MB, 25 MiB) copied, 4.14616 s, 6.3 MB/s 62+0 records in 62+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 9.39002 s, 6.9 MB/s ref file size: ref1(26214400), ref2(65011712) 1600+0 records in 1600+0 records out 26214400 bytes (26 MB, 25 MiB) copied, 7.85639 s, 3.3 MB/s Copied 393216 bytes before swapping layout...