== sanity test 184c: Concurrent write and layout swap ==== 06:35:18 (1753439718) 22+0 records in 22+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 2.89514 s, 8.0 MB/s 35+0 records in 35+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 5.03457 s, 7.3 MB/s ref file size: ref1(23068672), ref2(36700160) 1408+0 records in 1408+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 6.49985 s, 3.5 MB/s Copied 819200 bytes before swapping layout...