== sanity test 184c: Concurrent write and layout swap ==== 17:10:59 (1780348259) 56+0 records in 56+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 2.97504 s, 19.7 MB/s 57+0 records in 57+0 records out 59768832 bytes (60 MB, 57 MiB) copied, 2.99478 s, 20.0 MB/s ref file size: ref1(58720256), ref2(59768832) 3584+0 records in 3584+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 5.8442 s, 10.0 MB/s Copied 1196032 bytes before swapping layout...