== sanity test 184c: Concurrent write and layout swap ==== 07:59:10 (1717156750) 57+0 records in 57+0 records out 59768832 bytes (60 MB) copied, 0.834429 s, 71.6 MB/s 40+0 records in 40+0 records out 41943040 bytes (42 MB) copied, 0.505633 s, 83.0 MB/s ref file size: ref1(59768832), ref2(41943040) 3648+0 records in 3648+0 records out 59768832 bytes (60 MB) copied, 0.78097 s, 76.5 MB/s Copied 8732672 bytes before swapping layout...