== sanity test 184c: Concurrent write and layout swap ==== 05:22:23 (1781256143) 56+0 records in 56+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 7.14931 s, 8.2 MB/s 68+0 records in 68+0 records out 71303168 bytes (71 MB, 68 MiB) copied, 9.03031 s, 7.9 MB/s ref file size: ref1(58720256), ref2(71303168) 3584+0 records in 3584+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 15.8296 s, 3.7 MB/s Copied 606208 bytes before swapping layout...