== sanity test 184c: Concurrent write and layout swap ==== 15:07:42 (1733170062) 57+0 records in 57+0 records out 59768832 bytes (60 MB) copied, 1.6596 s, 36.0 MB/s 36+0 records in 36+0 records out 37748736 bytes (38 MB) copied, 0.9951 s, 37.9 MB/s ref file size: ref1(59768832), ref2(37748736) 3648+0 records in 3648+0 records out 59768832 bytes (60 MB) copied, 3.45463 s, 17.3 MB/s Copied 1982464 bytes before swapping layout...