== sanity test 184c: Concurrent write and layout swap ==== 21:55:38 (1790733338) 56+0 records in 56+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 9.74851 s, 6.0 MB/s 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 6.21215 s, 6.8 MB/s ref file size: ref1(58720256), ref2(41943040) 3584+0 records in 3584+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 16.5998 s, 3.5 MB/s Copied 524288 bytes before swapping layout...