== sanity test 184c: Concurrent write and layout swap ==== 16:57:19 (1787000239) 41+0 records in 41+0 records out 42991616 bytes (43 MB, 41 MiB) copied, 5.18557 s, 8.3 MB/s 52+0 records in 52+0 records out 54525952 bytes (55 MB, 52 MiB) copied, 6.68152 s, 8.2 MB/s ref file size: ref1(42991616), ref2(54525952) 2624+0 records in 2624+0 records out 42991616 bytes (43 MB, 41 MiB) copied, 11.291 s, 3.8 MB/s Copied 688128 bytes before swapping layout...