== sanity test 184c: Concurrent write and layout swap ==== 07:10:32 (1715339432) 56+0 records in 56+0 records out 58720256 bytes (59 MB) copied, 1.78298 s, 32.9 MB/s 46+0 records in 46+0 records out 48234496 bytes (48 MB) copied, 1.75565 s, 27.5 MB/s ref file size: ref1(58720256), ref2(48234496) 3584+0 records in 3584+0 records out 58720256 bytes (59 MB) copied, 3.39895 s, 17.3 MB/s Copied 2129920 bytes before swapping layout...