== sanity test 184c: Concurrent write and layout swap ==== 15:08:47 (1787339327) 37+0 records in 37+0 records out 38797312 bytes (39 MB, 37 MiB) copied, 6.49738 s, 6.0 MB/s 22+0 records in 22+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 3.64686 s, 6.3 MB/s ref file size: ref1(38797312), ref2(23068672) 2368+0 records in 2368+0 records out 38797312 bytes (39 MB, 37 MiB) copied, 11.9226 s, 3.3 MB/s Copied 524288 bytes before swapping layout...