== sanity test 184c: Concurrent write and layout swap ==== 11:10:13 (1786201813) 57+0 records in 57+0 records out 59768832 bytes (60 MB, 57 MiB) copied, 4.61131 s, 13.0 MB/s 22+0 records in 22+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 1.34261 s, 17.2 MB/s ref file size: ref1(59768832), ref2(23068672) 3648+0 records in 3648+0 records out 59768832 bytes (60 MB, 57 MiB) copied, 5.91403 s, 10.1 MB/s Copied 1179648 bytes before swapping layout...