== sanity test 184c: Concurrent write and layout swap ==== 13:44:01 (1787334241) 28+0 records in 28+0 records out 29360128 bytes (29 MB, 28 MiB) copied, 4.04932 s, 7.3 MB/s 45+0 records in 45+0 records out 47185920 bytes (47 MB, 45 MiB) copied, 7.01183 s, 6.7 MB/s ref file size: ref1(29360128), ref2(47185920) 1792+0 records in 1792+0 records out 29360128 bytes (29 MB, 28 MiB) copied, 10.4855 s, 2.8 MB/s Copied 294912 bytes before swapping layout...