== sanity test 184c: Concurrent write and layout swap ==== 15:26:25 (1772483185) 55+0 records in 55+0 records out 57671680 bytes (58 MB, 55 MiB) copied, 3.79911 s, 15.2 MB/s 67+0 records in 67+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 4.64046 s, 15.1 MB/s ref file size: ref1(57671680), ref2(70254592) 3520+0 records in 3520+0 records out 57671680 bytes (58 MB, 55 MiB) copied, 5.94837 s, 9.7 MB/s Copied 1163264 bytes before swapping layout...