== sanity test 184c: Concurrent write and layout swap ==== 16:56:34 (1782248194) 55+0 records in 55+0 records out 57671680 bytes (58 MB, 55 MiB) copied, 8.30132 s, 6.9 MB/s 53+0 records in 53+0 records out 55574528 bytes (56 MB, 53 MiB) copied, 6.56161 s, 8.5 MB/s ref file size: ref1(57671680), ref2(55574528) 3520+0 records in 3520+0 records out 57671680 bytes (58 MB, 55 MiB) copied, 19.1122 s, 3.0 MB/s Copied 589824 bytes before swapping layout...