== sanity test 184c: Concurrent write and layout swap ==== 13:30:35 (1787592635) 57+0 records in 57+0 records out 59768832 bytes (60 MB, 57 MiB) copied, 10.636 s, 5.6 MB/s 26+0 records in 26+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 6.48881 s, 4.2 MB/s ref file size: ref1(59768832), ref2(27262976) 3648+0 records in 3648+0 records out 59768832 bytes (60 MB, 57 MiB) copied, 22.18 s, 2.7 MB/s Copied 901120 bytes before swapping layout...