== sanity test 184c: Concurrent write and layout swap ==== 15:54:34 (1787860474) 57+0 records in 57+0 records out 59768832 bytes (60 MB, 57 MiB) copied, 9.04424 s, 6.6 MB/s 43+0 records in 43+0 records out 45088768 bytes (45 MB, 43 MiB) copied, 5.85856 s, 7.7 MB/s ref file size: ref1(59768832), ref2(45088768) 3648+0 records in 3648+0 records out 59768832 bytes (60 MB, 57 MiB) copied, 15.9198 s, 3.8 MB/s Copied 1130496 bytes before swapping layout...